Application is freezing when I scroll through my webview application

Application is freezing when I scroll through my webview application - android

The application consists of a simple splash screen and webview. But when it comes to the webview side, there is a problem of freezing in the application. It doesn't work exactly when I scroll. There is no freeze in the normal browser. What is the problem
Splash Screen
public class SplashScreen extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash_screen);
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
#Override
public void run() {
startActivity(new Intent(SplashScreen.this,MainActivity.class));
finish();
}
}, 1200);
}
}
Main Activity
public class MainActivity extends AppCompatActivity {
private final static int FCR = 1;
WebView webView;
private String mCM;
private ValueCallback<Uri> mUploadMessage;
public ValueCallback<Uri[]> uploadMessage;
public static final int REQUEST_SELECT_FILE = 100;
private final static int FILECHOOSER_RESULTCODE = 1;
#SuppressLint("WrongViewCast")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = findViewById(R.id.webView);
webView.loadUrl("https://dokuzlama.com");
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setSupportZoom(false);
webSettings.setAllowFileAccess(true);
webSettings.setAllowFileAccess(true);
webSettings.setAllowContentAccess(true);
webView.setWebViewClient(new Callback());
webView.setWebChromeClient(new WebChromeClient()
{
// For 3.0+ Devices (Start)
// onActivityResult attached before constructor
protected void openFileChooser(ValueCallback uploadMsg, String acceptType)
{
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
startActivityForResult(Intent.createChooser(i, "File Browser"), FILECHOOSER_RESULTCODE);
}
// For Lollipop 5.0+ Devices
public boolean onShowFileChooser(WebView mWebView, ValueCallback<Uri[]> filePathCallback, WebChromeClient.FileChooserParams fileChooserParams)
{
if (uploadMessage != null) {
uploadMessage.onReceiveValue(null);
uploadMessage = null;
}
uploadMessage = filePathCallback;
Intent intent = fileChooserParams.createIntent();
try
{
startActivityForResult(intent, REQUEST_SELECT_FILE);
} catch (ActivityNotFoundException e)
{
uploadMessage = null;
Toast.makeText(MainActivity.this.getApplicationContext(), "Cannot Open File Chooser", Toast.LENGTH_LONG).show();
//eski---- > Toast.makeText(getActivity().getApplicationContext(), "Cannot Open File Chooser", Toast.LENGTH_LONG).show();
return false;
}
return true;
}
//For Android 4.1 only
protected void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture)
{
mUploadMessage = uploadMsg;
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");
startActivityForResult(Intent.createChooser(intent, "File Browser"), FILECHOOSER_RESULTCODE);
}
protected void openFileChooser(ValueCallback<Uri> uploadMsg)
{
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
}
});
}
public class Callback extends WebViewClient {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(getApplicationContext(), "Uygulama yüklenemedi", Toast.LENGTH_SHORT).show();
}
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
if (requestCode == REQUEST_SELECT_FILE) {
if (uploadMessage == null)
return;
uploadMessage.onReceiveValue(WebChromeClient.FileChooserParams.parseResult(resultCode, intent));
uploadMessage = null;
}
} else if (requestCode == FILECHOOSER_RESULTCODE) {
if (null == mUploadMessage)
return;
// Use MainActivity.RESULT_OK if you're implementing WebView inside Fragment
// Use RESULT_OK only if you're implementing WebView inside an Activity
Uri result = intent == null || resultCode != MainActivity.RESULT_OK ? null : intent.getData();
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
} else
Toast.makeText(MainActivity.this.getApplicationContext(), "Failed to Upload Image", Toast.LENGTH_LONG).show();
//eski____ Toast.makeText(getActivity().getApplicationContext(), "Failed to Upload Image", Toast.LENGTH_LONG).show();
}
#Override
public void onBackPressed() {
if (webView.canGoBack()){
webView.goBack();
} else {
super.onBackPressed();
}
}
}
I researched and analyzed a lot but I couldn't find

Try enabling hardware acceleration in manifest in your activity
android:hardwareAccelerated="true"

Related

webview app: choosing a file doesn't work

I'm setting up my webview app and I would like "choose file" button to be able to upload pictures from my phone, but now that button does not have any function or does not work. Please if anyone can help me, thank you in advance!
This is from MainActivity
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = (WebView) findViewById(R.id.webview);
webView.setWebViewClient(new WebViewClient());
webView.loadUrl("https://example.com");
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
}
#Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
super.onBackPressed();
}
}
}
And this is from AndroidManifest:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

Follow the stated code below :
public class MainActivity extends Activity {
private WebView webView;
private String urlStart = "http://www.example.com/mobile/";
private static final int FILECHOOSER_RESULTCODE = 2888;
private ValueCallback<Uri> mUploadMessage;
//Camera parameters
private Uri mCapturedImageURI = null;
#SuppressLint("SetJavaScriptEnabled")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = (WebView) findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setLoadWithOverviewMode(true);
webView.getSettings().setAllowFileAccess(true);
webView.loadUrl(urlStart);
webView.setWebChromeClient(new WebChromeClient() {
// openFileChooser for Android 3.0+
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
mUploadMessage = uploadMsg;
try{
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File externalDataDir = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DCIM);
File cameraDataDir = new File(externalDataDir.getAbsolutePath() +
File.separator + "browser-photos");
cameraDataDir.mkdirs();
String mCameraFilePath = cameraDataDir.getAbsolutePath() + File.separator +
System.currentTimeMillis() + ".jpg";
mCapturedImageURI = Uri.fromFile(new File(mCameraFilePath));
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
Intent chooserIntent = Intent.createChooser(i, "Image Chooser");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Parcelable[] { cameraIntent });
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
}
catch(Exception e){
Toast.makeText(getBaseContext(), "Camera Exception:"+e, Toast.LENGTH_LONG).show();
}
}
// For Android < 3.0
#SuppressWarnings("unused")
public void openFileChooser(ValueCallback<Uri> uploadMsg ) {
openFileChooser(uploadMsg, "");
}
// For Android > 4.1.1
#SuppressWarnings("unused")
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture){
openFileChooser(uploadMsg, acceptType);
}
public boolean onConsoleMessage(ConsoleMessage cm) {
onConsoleMessage(cm.message(), cm.lineNumber(), cm.sourceId());
return true;
}
public void onConsoleMessage(String message, int lineNumber, String sourceID)
{
Log.d("androidruntime", "www.example.com: " + message);
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
// TODO Auto-generated method stub
if(requestCode==FILECHOOSER_RESULTCODE){
if (null == this.mUploadMessage) {
return;
}
Uri result=null;
try{
if (resultCode != RESULT_OK) {
result = null;
} else {
// retrieve from the private variable if the intent is null
result = intent == null ? mCapturedImageURI : intent.getData();
}
} catch(Exception e) {
Toast.makeText(getApplicationContext(), "activity :"+e, Toast.LENGTH_LONG).show();
}
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
}
}

You have to set WebChromeClient for Choose File in webview
CODE IS HERE
public class WebViewActivity extends AppCompatActivity {
private WebView webView;
private String url = "www.example.com";
private ValueCallback<Uri> msgUpload;
private final static int CHOOSER_FILE_RESULT_CODE = 100;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview);
initViews();
setListeners();
}
private void initViews() {
webView = findViewById(R.id.webView);
webView.getSettings().setLoadsImagesAutomatically(true);
webView.setInitialScale(1);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
webView.getSettings().setLoadWithOverviewMode(true);
webView.getSettings().setUseWideViewPort(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setDisplayZoomControls(false);
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
webView.setWebViewClient(new WebViewClient());
webView.getSettings().setAllowFileAccess(true);
}
private void setListeners()
{
webView.setWebViewClient(new WebViewClient() {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
webView.loadUrl("about:blank");
view.clearHistory();
}
});
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
}
// For Android 3.0+
public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
msgUpload = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("*/*");
startActivityForResult(
Intent.createChooser(i, "File Browser"),
CHOOSER_FILE_RESULT_CODE);
}
//For Android 4.1 and above
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
msgUpload = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
startActivityForResult(Intent.createChooser(i, "File Chooser"), CHOOSER_FILE_RESULT_CODE);
}
});
webView.loadUrl(url);
final MyJavaScriptInterface myJavaScriptInterface
= new MyJavaScriptInterface(this);
webView.addJavascriptInterface(myJavaScriptInterface, "AndroidFunction");
}
#Override
public void onBackPressed() {
// TODO Auto-generated method stub
if (webView.canGoBack() == true) {
webView.goBack();
} else {
super.onBackPressed();
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode,
Intent intent) {
if (requestCode == CHOOSER_FILE_RESULT_CODE) {
if (null == msgUpload) return;
Uri result = intent == null || resultCode != RESULT_OK ? null
: intent.getData();
msgUpload.onReceiveValue(result);
msgUpload= null;
}
}
public class MyJavaScriptInterface {
Context mContext;
MyJavaScriptInterface(Context c) {
mContext = c;
}
#JavascriptInterface
public void showToast(String toast) {
Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show();
}
#JavascriptInterface
public void openAndroidDialog() {
AlertDialog.Builder myDialog
= new AlertDialog.Builder(WebViewActivity.this);
myDialog.setTitle("DANGER!");
myDialog.setMessage("You can do what you want!");
myDialog.setPositiveButton("ON", null);
myDialog.show();
}
}

upload image from camera in webview does not work

I've been trying to do an upload of images in Workplace from facebook through webview from gallery and from camera.
From gallery it works fine but from camera the image doesn't appear on the upload.
I've seen similar posts with this question like this and this but i don't see what's wrong.
This is my class:
public class WorkplaceActivity extends BaseActivity implements WorkplaceContract.View {
private WorkplacePresenter workplacePresenter;
private Tracker trackerGA;
private MyApplicaton appGA;
private Toolbar toolbar;
private WebView ctWebView;
private ValueCallback<Uri[]> mUploadMessage;
private final static int FILECHOOSER_RESULTCODE = 1;
private Uri mCameraURI;
#Override
public void setupWorkplace() {
WebViewClient webclient = new WebViewClient();
ctWebView = (WebView) findViewById(R.id.ctWebView);
ctWebView.getSettings().setAppCacheEnabled(true);
ctWebView.getSettings().setJavaScriptEnabled(true);
ctWebView.getSettings().setLoadWithOverviewMode(true);
ctWebView.getSettings().setAllowFileAccess(true);
ctWebView.setWebViewClient(webclient);
ctWebView.loadUrl(ConstantsStrings.WORKPLACE_URL);
}
#Override
public void setupGA() {
// Google Analytics
appGA = (MyApplicaton) getApplication();
trackerGA = appGA.getDefaultTracker();
sendGA(ConstantsStrings.WORKPLACE_GA_IN);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_workplace);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
workplacePresenter = new WorkplacePresenter();
workplacePresenter.attachView(this);
workplacePresenter.checkPermissions(WorkplaceActivity.this);
ActionBar actionBar = this.getSupportActionBar();
if (actionBar != null) {
actionBar.setDisplayHomeAsUpEnabled(false);
actionBar.setDisplayShowHomeEnabled(false);
actionBar.setHomeAsUpIndicator(R.drawable.ic_arrow_left);
actionBar.setTitle("");
// add back button
ImageButton back_button = (ImageButton) findViewById(R.id.back_button);
back_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (ctWebView.canGoBack()) {
ctWebView.goBack();
}
Log.d("WORKPLACE", "click back");
}
});
// add close button
ImageButton close_button = (ImageButton) findViewById(R.id.close_button);
close_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
finish();
Log.d("WORKPLACE", "click close");
}
});
}
setupGA();
setupWorkplace();
ctWebView.setWebChromeClient(new WebChromeClient() {
#Override
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, FileChooserParams fileChooserParams) {
WorkplaceActivity.this.openFileChooser(filePathCallback);
return true;
}
});
}
#Override
public void onBackPressed() {
super.onBackPressed();
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == FILECHOOSER_RESULTCODE) {
if (mUploadMessage != null) {
Uri[] temp = new Uri[1];
if (intent != null && intent.getData() != null) {
temp[0] = intent.getData();
} else if (mCameraURI != null) {
temp[0] = mCameraURI;
}
mUploadMessage.onReceiveValue(temp);
mUploadMessage = null;
}
}
}
public static Intent newInstance(Context context) {
return new Intent(context, WorkplaceActivity.class);
}
#Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
workplacePresenter.attachView(this);
}
#Override
public void onDetachedFromWindow() {
super.onDetachedFromWindow();
workplacePresenter.detachView();
}
#Override
public void showLoading() {
}
#Override
public void hideLoading() {
}
#Override
public void sendGA(String msg) {
// Google Analytics
trackerGA = appGA.getDefaultTracker();
trackerGA.setScreenName(msg);
trackerGA.send(new HitBuilders.ScreenViewBuilder().build());
}
private void openFileChooser(ValueCallback<Uri[]> uploadMsg) {
mUploadMessage = uploadMsg;
try {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
ActivityCompat.requestPermissions(WorkplaceActivity.this, new String[]{Manifest.permission.CAMERA}, FILECHOOSER_RESULTCODE);
ActivityCompat.requestPermissions(WorkplaceActivity.this, new String[]{Manifest.permission_group.STORAGE}, 6);
ActivityCompat.requestPermissions(WorkplaceActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 5);
File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File cameraDir = new File(storageDir.getAbsolutePath() + File.separator + "browser-photos");
cameraDir.mkdirs();
String mCameraFilePath = cameraDir.getAbsolutePath() + File.separator + ".jpg";
mCameraURI = Uri.fromFile(new File(mCameraFilePath));
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCameraURI);
Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
contentSelectionIntent.setType("image/*");
Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
chooserIntent.putExtra(Intent.EXTRA_TITLE, "Image Chooser");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Parcelable[]{takePictureIntent});
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
} catch (Exception e) {
Toast.makeText(getBaseContext(), "Camera Exception:" + e, Toast.LENGTH_LONG);
}
}
When i do try to upload an image from the camera, my phone saves the image but it does not appear on the upload screen.

check this it's worked for me.
public class MainActivity extends Activity {
private WebView webView;
private ValueCallback<Uri> mUploadMessage;
private ValueCallback<Uri[]> mUploadMessages;
private Uri mCapturedImageURI = null;
private static final int MY_CAMERA_REQUEST_CODE = 100;
private static final int FILECHOOSER_RESULTCODE = 1;
#RequiresApi(api = Build.VERSION_CODES.M)
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = findViewById(R.id.webView);
webView.setWebViewClient(new WebViewClient());
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setPluginState(WebSettings.PluginState.ON);
webView.getSettings().setAppCacheEnabled(false);
webView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
webView.getSettings().setUseWideViewPort(true);
webView.getSettings().setLoadWithOverviewMode(true);
webView.getSettings().setBuiltInZoomControls(false);
webView.getSettings().setSupportZoom(false);
webView.getSettings().setDefaultZoom(WebSettings.ZoomDensity.FAR);
webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setDatabaseEnabled(true);
webView.getSettings().setDatabasePath("/data/data/" + webView.getContext().getPackageName() + "/databases/");
webView.loadUrl("url");
webView.setWebChromeClient(new WebChromeClient() {
// For api level bellow 24
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.startsWith("http")) {
// Return false means, web view will handle the link
return false;
}
return false;
}
// From api level 24
#RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
/*Toast.makeText(mcontext, "New Method",Toast.LENGTH_SHORT).show();*/
// Get the tel: url
String url = request.getUrl().toString();
if (url.startsWith("http")) {
// Return false means, web view will handle the link
return false;
}
return false;
}
// openFileChooser for Android 3.0+
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
mUploadMessage = uploadMsg;
openImageChooser();
}
// For Lollipop 5.0+ Devices
public boolean onShowFileChooser(WebView mWebView, ValueCallback<Uri[]> filePathCallback, WebChromeClient.FileChooserParams fileChooserParams) {
mUploadMessages = filePathCallback;
openImageChooser();
return true;
}
// openFileChooser for Android < 3.0
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
openFileChooser(uploadMsg, "");
}
//openFileChooser for other Android versions
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
openFileChooser(uploadMsg, acceptType);
}
});
}
private void openImageChooser() {
try {
File imageStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "FolderName");
if (!imageStorageDir.exists()) {
imageStorageDir.mkdirs();
}
File file = new File(imageStorageDir + File.separator + "IMG_" + String.valueOf(System.currentTimeMillis()) + ".jpg");
mCapturedImageURI = Uri.fromFile(file);
final Intent captureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
Intent chooserIntent = Intent.createChooser(i, "Image Chooser");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Parcelable[]{captureIntent});
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
if (requestCode == FILECHOOSER_RESULTCODE) {
if (null == this.mUploadMessage && null == this.mUploadMessages) {
return;
}
/* Uri result;
if (requestCode != RESULT_OK){
result = null;
}else {
result = intent == null ? this.mCapturedImageURI : intent.getData();
}
this.mUploadMessage.onReceiveValue(result);
this.mUploadMessage = null;*/
if (null != mUploadMessage) {
handleUploadMessage(requestCode, resultCode, intent);
} else if (mUploadMessages != null) {
handleUploadMessages(requestCode, resultCode, intent);
}
}
}
private void handleUploadMessage(int requestCode, int resultCode, Intent intent) {
Uri result = null;
try {
if (resultCode != RESULT_OK) {
result = null;
} else {
// retrieve from the private variable if the intent is null
result = intent == null ? mCapturedImageURI : intent.getData();
}
} catch (Exception e) {
e.printStackTrace();
}
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
}
#TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void handleUploadMessages(int requestCode, int resultCode, Intent intent) {
Uri[] results = null;
try {
if (resultCode != RESULT_OK) {
results = null;
} else {
if (intent != null) {
String dataString = intent.getDataString();
ClipData clipData = intent.getClipData();
if (clipData != null) {
results = new Uri[clipData.getItemCount()];
for (int i = 0; i < clipData.getItemCount(); i++) {
ClipData.Item item = clipData.getItemAt(i);
results[i] = item.getUri();
}
}
if (dataString != null) {
results = new Uri[]{Uri.parse(dataString)};
}
} else {
results = new Uri[]{mCapturedImageURI};
}
}
} catch (Exception e) {
e.printStackTrace();
}
mUploadMessages.onReceiveValue(results);
mUploadMessages = null;
}
}

choose files dont work on the phone using webview

I have a button choose files in website, when you press the button on your computer it works and when you press the button on the phone does not work what solution, the site shows using WebView
mywebsite = (WebView)findViewById(R.id.mywebsite);
pd_loading = (ProgressBar)findViewById(R.id.pd_loading);
mywebsite.getSettings().setLoadsImagesAutomatically(true);
mywebsite.getSettings().setJavaScriptEnabled(true);
mywebsite.setWebViewClient(new WebViewClient());
mywebsite.loadUrl(Information.URL_Home);
mywebsite.setWebViewClient(new WebViewClient(){
public void onPageFinished(WebView view ,String url)
{
pd_loading.setVisibility(View.GONE);
mywebsite.setVisibility(View.VISIBLE);
}
#Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
Toasty.error(Home.this,"",Toast.LENGTH_SHORT,true).show();
}
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
startActivityForResult(Intent.createChooser(i, "File Chooser"), 101);
mUploadMessage = uploadMsg;
}
// For Android > 4.1 - undocumented method
#SuppressWarnings("unused")
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
openFileChooser(uploadMsg, "");
}
// For Android > 5.0
#TargetApi(Build.VERSION_CODES.LOLLIPOP)
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, WebChromeClient.FileChooserParams fileChooserParams) {
startActivityForResult(fileChooserParams.createIntent(), 101);
return true;
}
});
onActivittyResult
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
switch (requestCode) {
case 101:
if (resultCode == RESULT_OK) {
Uri result = intent == null || resultCode != RESULT_OK ? null
: intent.getData();
if (mUploadMessage != null) {
mUploadMessage.onReceiveValue(result);
} else if (afterLolipop != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
afterLolipop.onReceiveValue(WebChromeClient.FileChooserParams.parseResult(resultCode, intent));
afterLolipop = null;
}
}
mUploadMessage = null;
}
}
}
these codes don't work I just want to choose a picture of a computer I hope help me thanks

When I faced a similar kind of issue, I have made use of setWebChromeClient() method found from this souce.
import android.app.AlertDialog;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.webkit.JavascriptInterface;
import android.webkit.ValueCallback;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
import android.widget.Toast;
import org.apache.http.util.EncodingUtils;
public class BrowserScreen extends Activity {
private WebView webView;
private String url = "url";
private ValueCallback<Uri> mUploadMessage;
private final static int FILECHOOSER_RESULTCODE = 1;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.browser_activity);
initFields();
setListeners();
}
public void initFields() {
// TODO Auto-generated method stub
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setAllowFileAccess(true);
}
public void setListeners() {
// TODO Auto-generated method stub
webView.setWebViewClient(new WebViewClient() {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
webView.loadUrl("about:blank");
view.clearHistory();
}
});
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
}
//The undocumented magic method override
//Eclipse will swear at you if you try to put #Override here
// For Android 3.0+
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
}
// For Android 3.0+
public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("*/*");
startActivityForResult(
Intent.createChooser(i, "File Browser"),
FILECHOOSER_RESULTCODE);
}
//For Android 4.1
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
}
});
webView.loadUrl(url);
final MyJavaScriptInterface myJavaScriptInterface
= new MyJavaScriptInterface(this);
webView.addJavascriptInterface(myJavaScriptInterface, "AndroidFunction");
}
#Override
public void onBackPressed() {
// TODO Auto-generated method stub
if (webView.canGoBack() == true) {
webView.goBack();
} else {
super.onBackPressed();
}
}
public class MyJavaScriptInterface {
Context mContext;
MyJavaScriptInterface(Context c) {
mContext = c;
}
#JavascriptInterface
public void showToast(String toast) {
Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show();
// webView.loadUrl("javascript:document.getElementById(\"Button3\").innerHTML = \"bye\";");
}
#JavascriptInterface
public void openAndroidDialog() {
AlertDialog.Builder myDialog
= new AlertDialog.Builder(BrowserScreen.this);
myDialog.setTitle("DANGER!");
myDialog.setMessage("You can do what you want!");
myDialog.setPositiveButton("ON", null);
myDialog.show();
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode,
Intent intent) {
if (requestCode == FILECHOOSER_RESULTCODE) {
if (null == mUploadMessage) return;
Uri result = intent == null || resultCode != RESULT_OK ? null
: intent.getData();
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
}
}
}

Android Assess Camera/Gallery on WebView?

I'm trying to use WebView on my Android Activity, the web works fine for Location and things, the only problem I have is it's not triggering up the open file chooser Intent for the upload button.
Here is my code. MainActivity.java
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
private static final int FILECHOOSER_RESULTCODE = 2888;
private WebView webView;
private ValueCallback<Uri> mUploadMessage;
private Uri mCapturedImageURI = null;
#Override
public void onCreate(Bundle savedInstanceState) {
getWindow().requestFeature(Window.FEATURE_PROGRESS);
super.onCreate(savedInstanceState);
setActionBar();
webView = (WebView) findViewById(R.id.webViewNewBusiness);
webView.getSettings().setJavaScriptEnabled(true);
webView.addJavascriptInterface(new WebAppInterface(this), "Android");
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
webView.getSettings().setLoadWithOverviewMode(true);
webView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
webView.setScrollbarFadingEnabled(false);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setPluginState(WebSettings.PluginState.ON);
webView.getSettings().setAllowFileAccess(true);
webView.getSettings().setSupportZoom(true);
String serviceId = getIntent().getExtras().getString(Constant.SERVICE_ID);
String userHash = PhoneData.getUserHash(this);
String url = thisUrl;
Log.d(TAG, url);
final Activity activity = this;
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
// Activities and WebViews measure progress with different scales.
// The progress meter will automatically disappear when we reach 100%
activity.setProgress(progress * 1000);
}
public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) {
callback.invoke(origin, true, false);
}
// openFileChooser for Android 3.0+
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
// Update message
mUploadMessage = uploadMsg;
try {
// Create AndroidExampleFolder at sdcard
File imageStorageDir = new File(
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "Pictures");
if (!imageStorageDir.exists()) {
// Create AndroidExampleFolder at sdcard
imageStorageDir.mkdirs();
}
// Create camera captured image file path and name
File file = new File(imageStorageDir + File.separator + "IMG_" + String.valueOf(System.currentTimeMillis()) + ".jpg");
mCapturedImageURI = Uri.fromFile(file);
// Camera capture image intent
final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
// Create file chooser intent
Intent chooserIntent = Intent.createChooser(i, "Image Chooser");
// Set camera intent to file chooser
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS
, new Parcelable[]{captureIntent});
// On select image call onActivityResult method of activity
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
} catch (Exception e) {
Toast.makeText(getBaseContext(), "Exception:" + e, Toast.LENGTH_LONG).show();
}
}
// openFileChooser for Android < 3.0
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
openFileChooser(uploadMsg, "");
}
//openFileChooser for other Android versions
public void openFileChooser(ValueCallback<Uri> uploadMsg,
String acceptType,
String capture) {
openFileChooser(uploadMsg, acceptType);
}
// The webPage has 2 filechoosers and will send a
// console message informing what action to perform,
// taking a photo or updating the file
public boolean onConsoleMessage(ConsoleMessage cm) {
onConsoleMessage(cm.message(), cm.lineNumber(), cm.sourceId());
return true;
}
public void onConsoleMessage(String message, int lineNumber, String sourceID) {
//Log.d("androidruntime", "Show console messages, Used for debugging: " + message);
}
});
webView.setWebViewClient(new WebViewClient() {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Log.d(activity, getString(R.string.generic_error));
}
});
webView.loadUrl(url);
}
private void setActionBar() {
Toolbar toolbar = (Toolbar) findViewById(R.id.app_bar);
setSupportActionBar(toolbar);
final ActionBar ab = getSupportActionBar();
if (ab != null) {
ab.setHomeAsUpIndicator(R.drawable.ab_back);
ab.setDisplayHomeAsUpEnabled(true);
}
}
#Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
super.onBackPressed();
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == FILECHOOSER_RESULTCODE) {
if (null == this.mUploadMessage) {
return;
}
Uri result = null;
try {
if (resultCode != RESULT_OK) {
result = null;
} else {
// retrieve from the private variable if the intent is null
result = intent == null ? mCapturedImageURI : intent.getData();
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(), "activity :" + e,
Toast.LENGTH_LONG).show();
}
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
}
}
}

File Upload in WebView doesn't work

public class cloud extends Activity
{
#SuppressLint("SetJavaScriptEnabled")
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.cloud);
setTitle("AmigoFriends");
WebView myWebView01 = (WebView)findViewById(R.id.webView1);
String strURI = "http://amigofriends.mis.nsysu.edu.tw/e/mobile/";
myWebView01.loadUrl(strURI);
myWebView01.setWebViewClient(new WebViewClient(){});
WebSettings websettings = myWebView01.getSettings();
websettings.setJavaScriptEnabled(true);
websettings.setSupportZoom(true);
websettings.setBuiltInZoomControls(true);
websettings.setLoadsImagesAutomatically(true);
WebSettings settings = myWebView01.getSettings();
settings.setUseWideViewPort(true);
settings.setLoadWithOverviewMode(true);
}
public boolean onKeyDown(int keyCode, KeyEvent event)
{
WebView myWebView01 = (WebView)findViewById(R.id.webView1);
if ((keyCode == KeyEvent.KEYCODE_BACK) && event.getRepeatCount() == 0)
{
boolean CloseYN;
if(myWebView01.canGoBack())
{
CloseYN = false;
myWebView01.goBack();
}
else
{
CloseYN = true;
}
event.startTracking();
return CloseYN;
}
return super.onKeyDown(keyCode, event);
}
private ValueCallback<Uri> mUploadMessage;
private final static int FILECHOOSER_RESULTCODE = 1;
#Override
protected void onActivityResult(int requestCode, int resultCode,
Intent intent) {
if (requestCode == FILECHOOSER_RESULTCODE) {
if (null == mUploadMessage)
return;
Uri result = intent == null || resultCode != RESULT_OK ? null
: intent.getData();
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
}
}
protected class CustomWebChromeClient extends WebChromeClient
{
// For Android > 4.1
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture)
{
openFileChooser(uploadMsg);
}
// Andorid 3.0 +
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType)
{
openFileChooser(uploadMsg);
}
//Android 3.0
public void openFileChooser(ValueCallback<Uri> uploadMsg)
{
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("*/*");
startActivityForResult(Intent.createChooser(i, "Image Browser"), FILECHOOSER_RESULTCODE);
}
}
class MyWebChromeClient extends WebChromeClient
{
// The undocumented magic method override
// Eclipse will swear at you if you try to put #Override here
public void openFileChooser(ValueCallback<Uri> uploadMsg)
{
mUploadMessage = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
cloud.this.startActivityForResult(
Intent.createChooser(i, "Image Browser"),
FILECHOOSER_RESULTCODE);
}
}
}

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Application is freezing when I scroll through my webview application - android

Try enabling hardware acceleration in manifest in your activity android:hardwareAccelerated="true"

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Android Assess Camera/Gallery on WebView?

File Upload in WebView doesn't work

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