I'm trying to build my FIRST app, it just. Launch -> splashscreen -> display web page automatically (fullscreen / no button trigger). But, after splashscreen, it just blank. I guess something wrong on Intent part in MainActivity.java, and intent-filter in AndroidManifest.xml. But I don't know to fix this yet.
This is my code:
MainActivity.java
package com.myapp.splashscreen;
import android.app.Activity;
import android.os.Bundle;
import android.content.Intent;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Intent intent = new Intent(context, WebViewActivity.class);
startActivity(intent);
}
}
SplashScreen.java
package com.myapp.splashscreen;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
public class SplashScreen extends Activity {
private static final int SPLASH_TIME = 3 * 1000;// 3 seconds
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splashscreen);
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
Intent intent = new Intent(SplashScreen.this,
MainActivity.class);
startActivity(intent);
SplashScreen.this.finish();
overridePendingTransition(R.anim.fade_in, R.anim.fade_out);
}
}, SPLASH_TIME);
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
}
}, SPLASH_TIME);
}
#Override
public void onBackPressed() {
this.finish();
super.onBackPressed();
}
}
WebViewActivity.java
package com.myapp.splashscreen;
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;
public class WebViewActivity extends Activity {
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.id.webView1);
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.google.com");
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#d3d3d3"
android:orientation="vertical">
<WebView
android:id="#+id/webView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
splashscreen.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/splash"
android:configChanges="orientation|keyboardHidden"
android:orientation="vertical"
android:screenOrientation="portrait">
</RelativeLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myapp.splashscreen"
android:versionCode="1"
android:versionName="1.0">
<uses-permission android:name="android.permission.INTERNET" />
<uses-sdk android:minSdkVersion="8" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name">
<activity
android:name=".SplashScreen"
android:theme="#android:style/Theme.Black.NoTitleBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity"></activity>
<activity
android:name=".WebViewActivity"
android:theme="#android:style/Theme.NoTitleBar" />
</application>
</manifest>
If you want you the order to be SplashActivity -> WebViewActivity
Change in SplashActivity
Intent intent = new Intent(SplashScreen.this,
MainActivity.class);
to
Intent intent = new Intent(SplashScreen.this,
WebViewActivity.class);
This will tell you application that it should start the WebViewActivity instead of the MainActivity
You haven't declared the WebViewActivity in your AndroidManifest.xml
Related
This question already has answers here:
How to start new activity on button click
(28 answers)
Closed 4 years ago.
I was trying to make small application of two activities but it gives me a code error...............................................................................................................................................................................................................................................
the error
Main activity Java code:
package com.example.amr.startnewactivity;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity
{
private Button op_btn;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
onClickButtonListener();
}
public void onClickButtonListener()
{
op_btn= (Button)findViewById(R.id.button);
op_btn.setOnClickListener(
new View.OnClickListener()
{
#Override
public void onClick(View v)
{
Intent intent = new Intent(".secondActivity");
startActivity(intent);
}
}
);
}
}
Second Activity Java code:
package com.example.amr.startnewactivity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class secondActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
}
}
Android manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.amr.startnewactivity">
<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>
<activity android:name=".secondActivity"></activity>
<intent-filter>
<action android:name=".secondActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</application>
</manifest>
Main activity.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="#+id/button"
android:layout_width="152dp"
android:layout_height="wrap_content"
android:layout_marginStart="116dp"
android:layout_marginLeft="116dp"
android:layout_marginTop="248dp"
android:text="open"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
Second activity .xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".secondActivity">
</android.support.constraint.ConstraintLayout>
did you try this?
Intent intent = new Intent(MainActivity.this,secondActivity.class);
startActivity(intent);
add this code to your button click
Intent intent = new Intent(MainActivity.this,secondActivity.class);
startActivity(intent);
OR
startActivity(new Intent(MainActivity.this,secondActivity.class))
And try to follow the naming conventions in Java. Look at here
What you're looking for is Intent(Context context, Class<?> class):
startActivity(new Intent(MainActivity.this, SecondActivity.class);
Or:
Intent secondActivityIntent = new Intent(MainActivity.this, SecondActivity.class);
startActivity(secondActivityIntent);
For more information, check out the documentation ("Start another activity").
A second note: Consider removing the <intent-filter> from your AndroidManifest.xml file for secondActivity. This declares a filter for other apps to access programmatically.
In this case, you don't actually need it if you're using an Activity. This is typically used for Intents.
When pressing the button, new activity should open but app instantly crashes. I have searched for answer and making a few adjustments to my code and only thing i dont know how to do is Manifest, can u help me with that?
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="Starting.Programm"
android:versionCode="1"
android:versionName="1.0">
<application android:label="#string/app_name"
android:icon="#drawable/ic_launcher">
<activity android:name="MainActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="InformationActivity"
android:label="#string/app_name"
>
</activity>
</application>
MainActivity:
package Starting.Programm;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
public class MainActivity extends InformationActivity
{
/** Called when the activity is first created. */
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
public void startJourney(View view) {
Intent intent = new Intent(this, InformationActivity.class);
startActivity(intent);
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
>
<Button android:id="#+id/button_StartApp"
android:layout_width="100dp"
android:layout_height="60dp"
android:text="#string/button_StartApp"
android:layout_gravity="center"
android:layout_marginTop="70dp"
android:layout_marginLeft="115dp"
android:onClick="startJourney"
/>
</LinearLayout>
And next activity which should be opening
package Starting.Programm;
import android.app.Activity;
import android.os.Bundle;
class InformationActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.information);
}
}
<activity> android:name=".InformationActivity" </activity>
Remove android:label="#string/app_name" too. I don't think it is needed.
Add dot to end of pacakager name
package="Starting.Programm."
I made a splash layout, that last for a time and then other activity should be loaded,alone it works perfectly, but when it's connected to other activity, it shows blank screen.
mainifest file :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="andy.propaganda"
android:installLocation="auto" >
<application
android:allowBackup="true"
android:icon="#drawable/my_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme.NoActionBar"
>
<activity
android:name=".shit"
android:label="#string/app_name"
>
<intent-filter>
<action android:name="com.coderefer.androidsplashscreenexample.MAINACTIVITY" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Splash"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- ATTENTION: This was auto-generated to add Google Play services to your project for
App Indexing. See https://g.co/AppIndexing/AndroidStudio for more information. -->
<meta-data
android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version" />
</application>
</manifest>
splash activity :
package andy.propaganda;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
/**
* Created by Andrew on 2/4/2016.
*/
public class Splash extends Activity {
//welcome animation
ImageView loading_img;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splash);
loading_img = (ImageView)findViewById(R.id.loading_view);
final Animation animatable = AnimationUtils.loadAnimation(this, R.anim.welcome_screen_anim);
loading_img.setAnimation(animatable);
//
for(int i = 0;i< 100000000;i++);
Intent intent = new Intent(this, shit.class);
intent.putExtra("jhjh", 8);
startActivity(intent);
}
}
main activity :
package andy.propaganda;
import android.app.Activity;
import android.os.Bundle;
/**
* Created by Andrew on 2/5/2016.
*/
public class shit extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
splash.xml :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent"
android:background="#color/MyBlue"
>
<ImageView
android:layout_width="300dp"
android:layout_height="300dp"
android:src="#drawable/my_launcher"
android:paddingTop="60dp"
android:id="#+id/imageView"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<ImageView
android:layout_width="75dp"
android:layout_height="75dp"
android:src="#drawable/loading"
android:layout_marginBottom="43dp"
android:id="#+id/loading_view"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="loading your files"
android:id="#+id/welcome_message"
android:focusable="false"
android:textColor="#010101"
android:textSize="#dimen/abc_action_bar_progress_bar_size"
android:layout_above="#+id/loading_view"
android:layout_alignRight="#+id/imageView"
android:layout_alignEnd="#+id/imageView"
android:layout_marginBottom="50dp" />
</RelativeLayout>
You should use timer on splash screen instead of for(int i = 0;i< 100000000;i++); which will wait for some time suppose 5 sec and than load another Activity.
package andy.propaganda;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
/**
* Created by Andrew on 2/4/2016.
*/
public class Splash extends Activity {
//welcome animation
ImageView loading_img;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.splash);
loading_img = (ImageView)findViewById(R.id.loading_view);
final Animation animatable = AnimationUtils.loadAnimation(this, R.anim.welcome_screen_anim);
loading_img.setAnimation(animatable);
new Timer().schedule(new TimerTask() {
#Override
public void run() {
// your task
Intent intent = new Intent(this, shit.class);
intent.putExtra("jhjh", 8);
startActivity(intent);
}
}, 5000);
}
}
RxJava solution:
Observable.empty().subscribeOn(AndroidSchadelurs.mainThread()).delay(500, TimeUtils.MILISECONDS).subscribe(this::startActivity(this, new Intent));
First of All dont use for Loop for waiting time instead of That use Handler with something like this :
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
startActivity(new Intent(Splash.this, shit.class));
finish();
}
}, 500);
Then remove this line from your manifest.xml :
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
Rest of your code seems ok :)
Also take look at this link which well-explained about Splash Screen.
My Android Studio version is 1.5.1
I have created an XML and it can show well in the AndroidStudio,
but when i run it in genymotion or my phone,it can not show the layout.
I am annoyed at this.I do not know what is wrong.
hope someone could help me.
code image
code:
SplashActivity
import android.content.Intent;
import android.os.Bundle;
import android.os.PersistableBundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
public class SplashActivity extends AppCompatActivity {
private Button mEnterButton;
private View.OnClickListener mOnClickListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.enter_button:
Intent intent = new Intent(SplashActivity.this, MainActivity.class);
startActivity(intent);
break;
}
}
};
#Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(R.layout.activity_splash);
mEnterButton = (Button) findViewById(R.id.enter_button);
mEnterButton.setOnClickListener(mOnClickListener);
}
}
MainActivity
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.button_first).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent=new Intent(MainActivity.this,SplashActivity.class);
startActivity(intent);
}
});
}
}
avtivity_splash_layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:background="#color/splashBackground">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/splash_tv_text"
android:textSize="28sp"
android:id="#+id/text_splash"
android:textColor="#color/white"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/splash_click_to_inter"
android:id="#+id/enter_button"/>
</LinearLayout>
Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="com.geekband.geekbandprojects">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme" >
<activity android:name=".MainActivity" >
</activity>
<activity android:name=".SplashActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Why you need a PersistableBundle ?
make your OnCreateMethod like:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//anything here
}
i'm considering that you haven't already set the SplashActivity as the startup activity.So add the following code(or change it) on Manifest:
<activity
android:name=".Splash"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity"/>
And let us know your MainActivity code and of course your Manifest with the logcat.
I will updated my answer after that.
And of course, i think you should use onClick on Oncreate method.
My app has three tabs, one of which is a Map. From the other two tabs I want the user to be able (after navigation through several screens) to go to the map tab and a certain location on the map with a button click from one of the screens which the user ends up on from the other two tabs. Is this possible?
referenced from method intentTest.xyz.com.intentTest$1.onClick
1.intentTest.java:
package intentTest.xyz.com;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class intentTest extends Activity {
Button b;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
b = (Button) findViewById(R.id.b);
b.setOnClickListener( new View.OnClickListener() {
public void onClick(View view) {
Intent intent = new Intent(intentTest.this,second.class );
startActivity(intent);
}
});
}
}
2.main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="First screen"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="map"
android:id="#+id/b"
/>
</LinearLayout>
3.second.java:
package intentTest.xyz.com;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import android.os.Bundle;
public class second extends MapActivity{
MapView map;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
map = (MapView) findViewById(R.id.map);
}
#Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
}
4.second.xml:
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/map"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:apiKey="0ujyc9Tw2cYvyPECIKTQIK0pwuL-UPa_sh4BpIw"
/>
5.manifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="intentTest.xyz.com"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:name=".intentTest"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".second"
android:label="#string/app_name">
<uses-library android:name="com.google.android.maps" />
</activity>
</application>
<uses-permission android:name="android.permission.INTERNET" />
</manifest>