public class Talk extends Activity {
private ProgressDialog progDialog;
int typeBar;
TextView text1;
EditText edit;
Button respond;
private String name;
private String textAtView;
private String savedName;
public void onCreate (Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.dorothydialog);
text1 = (TextView)findViewById(R.id.dialog);
edit = (EditText)findViewById(R.id.repsond);
respond = (Button)findViewById(R.id.button01);
respond.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
text1.setText("Welcome! Enter your name!");
respond.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
name = edit.getText().toString();
text1.setText("Cool! your name is "+name);
}
});
}
});
}
}
Okay so i want to figure out how i would save the state of this activity. this is just a small snippet from my code to show you guys an example. So i want to save the state so when the activity is destroyed the user will come back where they left off.
Second thing, I would like to show a quick 5 second Progress dialog spinner between each button click.
For the second thing
This should work:
public class TestActivity extends Activity implements Runnable, OnClickListener {
private TextView tv;
private ProgressDialog pd;
private Button btn;
#Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
tv = (TextView) this.findViewById(R.id.tv);
btn = (Button)findViewById(R.id.btn);
tv.setText("initial text");
btn.setOnClickListener(this);
}
public void onClick(View v) {
pd = ProgressDialog.show(TestActivity.this, "Please wait...", "Details here", true, false);
Thread thread = new Thread(TestActivity.this);
thread.start();
}
public void run() {
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
handler.sendEmptyMessage(0);
}
private Handler handler = new Handler() {
#Override
public void handleMessage(Message msg) {
pd.dismiss();
tv.setText("text after 5 sec passed");
}
};
}
Related
I am trying the following scenario
1)send a message from UI thread , to worker using HandlerThread
2)Read it using handlemessage
3)send it back to a text field in UI
I am using the below code , The issue now is that , the message in the handlemessage is coming as null
public class MainActivity extends AppCompatActivity {
private TextView serverStatus;
private TextView clientStatus;
private Handler mUiHandler = new Handler();
private BluetoothServerSocket serverSocket;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button readButton = (Button) findViewById(R.id.button2);
readButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//TODO Code to manage read data from client here !!
/* mWorkerThread2 = new MyWorkerThread("myWorkerThread2");
mWorkerThread2.start();
*/
}});
final Button submitButton = (Button) findViewById(R.id.button);
serverStatus=(TextView) findViewById(R.id.editText);
submitButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
HandlerThread myThread = new HandlerThread("Worker Thread");
myThread.start();
Looper mLooper = myThread.getLooper();
MyHandler mHandler = new MyHandler(mLooper);
/* Bundle data = new Bundle();
data.put
msg.setData(data);*/
Message msg = mHandler.obtainMessage();
msg.obj = serverStatus.getText().toString();// Some Arbitrary object
/* Toast.makeText(getApplicationContext(), msg.obj.toString(), Toast.LENGTH_SHORT).show();*/
mHandler.sendMessage(msg);
}});
}
class MyHandler extends Handler {
public MyHandler(Looper myLooper) {
super(myLooper);
}
public void handleMessage(final Message msg) {
//final String text=msg.getData().getString("");
mUiHandler.post(new Runnable() {
#Override
public void run() {
String ms=String.valueOf(msg.obj);
serverStatus.setText("from server !!! "+ms );
}
});
}
}
}
As per comments from #pskink , I have used CallBack . Below code works fine
public class MainActivity extends AppCompatActivity {
private TextView serverStatus;
private TextView clientStatus;
private Handler mUiHandler = new Handler();
Handler mHtHandler;
// Handler mUiHandler;
private BluetoothServerSocket serverSocket;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button readButton = (Button) findViewById(R.id.button2);
readButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//TODO Code to manage read data from client here !!
}});
final Button submitButton = (Button) findViewById(R.id.button);
serverStatus=(TextView) findViewById(R.id.editText);
submitButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
HandlerThread ht = new HandlerThread("MySuperAwsomeHandlerThread");
ht.start();
Handler.Callback callback = new Handler.Callback() {
#Override
public boolean handleMessage(Message msg) {
if (msg.what == 0) {
final Message msg1=mUiHandler.obtainMessage(0);
msg1.obj=msg.obj;
mUiHandler.post(new Runnable() {
#Override
public void run() {
final String ms=(String)msg1.obj;
serverStatus.setText("from server !!! "+ms );
}
});
}
return false;
}
};
mHtHandler = new Handler(ht.getLooper(), callback);
Message msg=mHtHandler.obtainMessage(0);
msg.obj = serverStatus.getText().toString();// Some Arbitrary object
mHtHandler.sendMessage(msg);
}});
}
}
I want to show a ProgressDialog while jumping from my LoginActivity to my HomeActivity, basically while HomeActivity is loading.
I am using a separate thread to call the intent of the HomeActivity while I am showing the ProgressDialog from the main thread in LoginActivity.
Everything seems to be working fine, it is just that the ProgressDialog is displayed but there is no animated spinner.
I am wondering if i am doing this correctly.
Here the relevant code from LoginActivity:
public class LoginActivity extends AppCompatActivity {
private EditText userID, userPass;
private ProgressDialog dialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
userID = (EditText) findViewById(R.id.edtX_srcLogin_userID);
userPass = (EditText) findViewById(R.id.edtX_srcLogin_userpass);
final Button bt_submit = (Button) findViewById(R.id.bT_scrLogin_submit);
bt_submit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
parseUserCredentials(userID.getText().toString(), userID.getText().toString());
}
});
}
private void parseUserCredentials(String userId, String userPassword) {
if ( userId.equals("userid") && userPassword.equals("1234") ) {
dialog = ProgressDialog.show(LoginActivity.this, "Checking credentials",
"Please wait...", true, false);
newThreadLoadActivity();
}else {
userID.setText("");
userPass.setText("");
userID.requestFocus();
dialog.cancel();
}
}
private void newThreadLoadActivity(){
new Thread() {
public void run() {
startActivity(new Intent(LoginActivity.this, HomeActivity.class));
}
}.start();
}
#Override
protected void onStop() {
super.onStop();
dialog.cancel();
}
}
EDIT
The main idea is to show the ProgressDialog whileHomeActivity loads, and cancel the ProgressDialog when HomeActivity is ready to be displayed.
Use the below code.It will make the delay for 10sec while moving to the next activity so your progress bar make be visible.
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
#Override
public void run() {
dialog.cancel();
startActivity(new Intent(LoginActivity.this, HomeActivity.class));
}
}, 10000);
in this app the Content of the TextView should change/update every second with a sleep thread.
The whole process starts when the button is clicked.
Firstable here is the normal code without the threads:
public class MainActivity extends ActionBarActivity {
Button btn;
TextView tw;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn = (Button) findViewById(R.id.btn);
tw = (TextView) findViewById(R.id.tw);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
tw.setText("1"); //This is the TextView Content, it should update every second with a sleep thread
tw.setText("2");
tw.setText("3");
}
});
}
}
This is the code added ( not working ) sleep threads:
public class MainActivity extends ActionBarActivity {
Button btn;
TextView tw;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn = (Button) findViewById(R.id.btn);
tw = (TextView) findViewById(R.id.tw);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
tw.setText("1");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
tw.setText("2");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
tw.setText("3");
}
});
}
}
Thank´s
The problem is that you are block the main UI(sleep) thread thus giving you unexpected result.
You need to use handler for this if you want to update this each second
sample:
public class MainActivity extends ActionBarActivity {
Button btn;
TextView tw;
int incre = 1;
Handler handler;
Runnable run;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn = (Button) findViewById(R.id.btn);
tw = (TextView) findViewById(R.id.tw);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
tw.setText(incre++ + "");
handler = new Handler();
run = new Runnable() {
#Override
public void run() {
tw.setText(incre++ + ""); //set the textview text HERE every 1 second
if(incre != 3) //checks if it is not already 3 second
handler.postDelayed(run, 1000); //run the method again
else
incre -= 2;
}
};
handler.postDelayed(run, 1000); //will call the runnable every 1 second
}
});
}
}
I need to toast the stopwatch's value
ie.,time taken between start and stop
If i click the stop button it should toast that time duration.
How to do this?
Here i have tried some code
chrono_meter.java
public class Chrono_meter extends Activity {
Chronometer chr;
Button btn_stop_travel;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.chronometer_layout);
chr = (Chronometer)findViewById(R.id.chronometer1);
chr.start();
btn_stop_travel = (Button)findViewById(R.id.btn_stop_inspection);
btn_stop_travel.setOnClickListener(mStopListener);
}
View.OnClickListener mStopListener = new OnClickListener() {
public void onClick(View v) {
chr.stop();
}
};
}
Try this
View.OnClickListener mStopListener = new OnClickListener() {
public void onClick(View v) {
chr.stop();
Toast.makeText(Chrono_meter.this, chr.getText(), Toast.LENGTH_LONG).show() ;
}
};
This is my little test program. My problem is that from run() method I access to fields of wrong (old) Activity, which was destroyed after screen orientation changed. What's the way to handle this situation?
And, by the way, I must have my activity been recreated, because in real application I have different layouts for portrait and landscape modes!
public class MainActivity extends Activity {
private EditText edit;
private Button button;
private ProgressDialog progressDialog;
private boolean isLoginInProgress = false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
edit = (EditText) findViewById(R.id.edit_timer);
button = (Button) findViewById(R.id.btn_start);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
try {
if (edit.getText().toString().length() == 0) throw new Exception();
long dTime = Long.parseLong(edit.getText().toString());
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
MainActivity.this.isLoginInProgress = false;
progressDialog.dismiss();
}
}, dTime);
progressDialog.show();
isLoginInProgress = true;
} catch (Exception e) {
Toast.makeText(MainActivity.this, "bad time value", Toast.LENGTH_SHORT).show();
}
}
});
progressDialog = new ProgressDialog(this);
progressDialog.setMessage("loading");
if (savedInstanceState != null) { // activity is restarted
isLoginInProgress = savedInstanceState.getBoolean("fl_login");
edit.setText(savedInstanceState.getString("edit"));
}
if (isLoginInProgress) { // Show dialog again
progressDialog.show();
}
}
#Override
protected void onSaveInstanceState(Bundle outState) {
outState.putBoolean("fl_login", isLoginInProgress);
outState.putString("edit", edit.getText().toString());
}
#Override
public void onDestroy(){
super.onDestroy();
progressDialog.dismiss();
}
}
You Can Use Database(SQLITE) for Storing Your Values..