I have created an application that I used about 44 short audio records.
For each I have created a button. But, sometimes the sound of a specific button doesn't work.
How can I fix it
I will post a part of the code:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first__window);
play_1= MediaPlayer.create(this,R.raw.a1);
play_2= MediaPlayer.create(this,R.raw.a2);
play_3= MediaPlayer.create(this,R.raw.a3);
play_4= MediaPlayer.create(this,R.raw.a4);
}
public void btn_1(View view)
{
play_1.start();
}
public void btn_2(View view)
{
play_2.start();
}
public void btn_3(View view)
{
play_3.start();
}
public void btn_4(View view)
{
play_4.start();
}
I don't know if I have to add some functions to avoid that problem.
You can use onClick Listener to such a manner.
You can do the followings :
btn_2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
play_2= MediaPlayer.create(this,R.raw.a1);
play_2.start();
while(play_2.isPlaying()) ;
play_2.release();
}
});
Related
I wrote a compound component and was adding a custom listener to react.
Inside the class for the compound component which uses an xml file.
public class VerticalCounterBlock extends LinearLayout {
public interface VerticalCounterBlockListener {
public void onCountChanged(int newCount);
}
private VerticalCounterBlockListener mVerticalCounterBlockListener = null;
public void setVerticalCounterBlockListener(VerticalCounterBlockListener listener){
mVerticalCounterBlockListener = listener;
}
// ... Other functions
}
I got my interface, I got the listener and I got the setter and I engage the listener like this in the button I have in the compound component. I can see that toast that is showing there when I test
addBtn = (Button)findViewById(R.id.btn_addcount);
addBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
count++;
counttv.setText(String.format("%1$d", count));
Toast.makeText(getContext(), "VCB", Toast.LENGTH_SHORT).show();
if(mVerticalCounterBlockListener != null) {
mVerticalCounterBlockListener.onCountChanged(count);
}
}
});
In my main activity
m20_vcb = (VerticalCounterBlock) findViewById(R.id.vcb_m20);
m20_vcb.setVerticalCounterBlockListener(new VerticalCounterBlock.VerticalCounterBlockListener() {
#Override
public void onCountChanged(int newCount) {
increasePreachCountTotal();
Toast.makeText(CounterActivity.this, String.format("%1$d", newCount), Toast.LENGTH_SHORT).show();
}
});
I do not see that toast nor does it engage the function call. What am I missing?
I can suggest you several improvement scope here mainly restructuring the current format.
Lets not keep the interface as a inner class. So here's your VerticalCounterBlockListener.java
public interface VerticalCounterBlockListener {
public void onCountChanged(int newCount);
}
Now implement this interface in your MainActivity
public class MainActivity implements VerticalCounterBlockListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
m20_vcb = (VerticalCounterBlock) findViewById(R.id.vcb_m20);
m20_vcb.setVerticalCounterBlockListener(this);
}
// ... Other methods
// Override the onCountChanged function.
#Override
public void onCountChanged(int newCount) {
increasePreachCountTotal();
Toast.makeText(CounterActivity.this, String.format("%1$d", newCount), Toast.LENGTH_SHORT).show();
}
}
You might consider removing the Toast from the addBtn click listener which might create exception.
addBtn = (Button)findViewById(R.id.btn_addcount);
addBtn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
count++;
counttv.setText(String.format("%1$d", count));
if(mVerticalCounterBlockListener != null) {
mVerticalCounterBlockListener.onCountChanged(count);
}
}
});
This was good there was something wrong with my system. i uninstaklled app and restarted computer and it worked as expected.
I am using an animation to slide a view to the top of the screen. The code for the animation is contained within a method called LoopAnimation() which is called from main.
public class MainActivity extends AppCompatActivity {
final View view = findViewById(R.id.view);
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
LoopAnimation(view); \\ The animation loop method
}
This LoopAnimation() method uses a nested setOnClickListener to create an animation loop
public void LoopAnimation(View view){
view.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// starts the animation
view.animate().translationY(-100);
view.animate().setDuration(1500);
// reverses the animation
view.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// Do some job here
view.animate().translationY(100);
view.animate().setDuration(1500);
LoopAnimation(view); // Method calls itself
// to create loop effect
}
});
}
});
}
The problem is that I am getting a trivial error that I can't understand. Although I have declared view as global and final, I get this error in LoopAnimation()
Variable 'view' is accessed from within inner class, needs to be declared final.
You are using the variable view that is defined within your method's scope. Notice that your method's parameter is also called view so you are not actually using the global variable that you think you are using.
public void LoopAnimation(View view){
Edit: I've looked more into the way that you are trying to do this, and the approach isn't what I would do. Here is something more reasonable:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
View view = findViewById(R.id.view);
view.setOnClickListener(new View.OnClickListener() {
private boolean _forwards = true;
#Override
public void onClick(View v) {
if (_forwards) {
// starts the animation
v.animate().translationY(-100);
v.animate().setDuration(1500);
_forwards = false;
} else {
// reverses the animation
v.animate().translationY(100);
v.animate().setDuration(1500);
_forwards = true;
}
}
}
}
}
I 'm starting with Xposed module and gives me an error I do not understand .
Use a ColorPicker to choose a color and then use the module, colorPicker works perfect
I then apply the code
if I put the color in the code,Color.Black works...
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity);
btn = (Button) findViewById(R.id.ybutton);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
colorPickerDialog = new ColorPickerDialog(Ver.this, color);
colorPickerDialog.setAlphaSliderVisible(true);
colorPickerDialog.setHexValueEnabled(true);
colorPickerDialog.setTitle("Color Bar");
colorPickerDialog.setOnColorChangedListener(new ColorPickerDialog.OnColorChangedListener() {
#Override
public void onColorChanged(int i) {
color = i;
//change the color of the button to confirm it works
btn.setBackgroundColor(color);
}
});
colorPickerDialog.show();
}
});
}
public void handleInitPackageResources(final XC_InitPackageResources.InitPackageResourcesParam resparam) throws Throwable {
if (!resparam.packageName.equals("com.run.appBar"))
return;
XposedBridge.log("Conexion hecha");
resparam.res.setReplacement("com.run.appBar", "color", "color_primary", color);//appBar
XposedBridge.log("color cambiado");
}
You can't use an Activity in an Xposed module.
I was able to the behavior I was trying to do by creating a service and sending messages between my interface and my hook through the service.
Aim:
I'm looking for a way to append functionality to a button's onClickListener.
Illustration
Button trigger = new Button(getActivity());
trigger.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
method1();
}
});
Button runMethod2Button = new Button(getActivity());
runMethod2Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
method1();
method2();
}
});
Button runMethod3Button = new Button(getActivity());
runMethod3Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
method1();
method3();
method4();
}
});
I know we can do this with inheritance by calling
#Override
public void method(){
super.method();
// Do appended stuff
}
Or we can do it inline
new Object(){
#Override
public void method(){
super();
// Do appended stuff
}
}
Things I've Tried
Extending the button to contain a list of Runnable Objects.
Then set the on click listener to trigger all of the runnable objects.
Is there a different/more efficient way of doing this?
Since we don't no much about the background why you want to do so, it is hard to what is the best. If you want to have the original listener unchanged / untouched, you could use a decorator / wrapper pattern.
Wikipedia Decorator Pattern
In the concrete case this means, it is quite comparable to your Runnable approach, but you do not depend on another Interface. Everthing is handled via the View.OnClickListener, which has the following advantages:
It is a generic approach with which you can even "extend" listeners to which you have no source access or which you do not want to modify.
You can create the extension behaviour at runtime and you can extend already instantiated listeners (in contrast to the use of inheritance)
The extensions do not have to know that they are extensions, they are just normal OnClickListeners. In your Runnable approach the extensions are "special" and for example they do not get the View paramter of the onClick method passed.
public class OriginalOnClickListener implements View.OnClickListener{
#Override
public void onClick(View v) {
Toast.makeText(MainActivity.this,"Original Click Listener",Toast.LENGTH_LONG).show();
}
}
public class ExtensionOnClickListener implements View.OnClickListener{
#Override
public void onClick(View v) {
Toast.makeText(MainActivity.this,"Extension Click Listener",Toast.LENGTH_LONG).show();
}
}
public class DecoratorOnClickListener implements View.OnClickListener {
private final List<View.OnClickListener> listeners = new ArrayList<>();
public void add(View.OnClickListener l) {
listeners.add(l);
}
#Override
public void onClick(View v) {
for(View.OnClickListener l : listeners){
l.onClick(v);
}
}
}
And the usage is like this:
DecoratorOnClickListener dl = new DecoratorOnClickListener();
dl.add(new OriginalOnClickListener());
dl.add(new ExtensionOnClickListener());
editText.setOnClickListener(dl);
I think the Runnable idea is okay, based on what you've said here. Seeing as I don't really know why you need dynamic click handlers, I think a possible solution would look something like this:
private class DynamicOnClickListener implements View.OnClickListener {
private final List<Runnable> mRunnables = new ArrayList<>();
public void add(Runnable r) {
mRunnables.add(r);
}
#Override
public void onClick(View v) {
for (Runnable r : mRunnables) {
r.run();
}
}
}
And you'd use it like this:
DynamicOnClickListener listener = new DynamicOnClickListener();
listener.add(new Runnable() {
#Override
public void run() {
doSomething();
}
});
listener.add(new Runnable() {
#Override
public void run() {
doSomethingElse();
}
});
mButton.setOnClickListener(listener);
what about something like
Button trigger = new Button(getActivity());
trigger.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
method1();
if (someVar) method2();
if (someVar2) method3();
}
})
I am using the library scringo on Android. "openChat" function doesn't seem to be working. It does absolutely nothing. Here is my code.
I read through their API:
http://www.scringo.com/docs/api/android/
openChat function should open the 1-on-1 chat with the other user. But that doesnt happen. Nothing happens. All the other functions are working fine.
It doesn't even log any errors or warning.
public class MainActivity extends Activity implements OnClickListener {
private Scringo scringo;
private Activity mainactivity;
private Button button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mainactivity = this;
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.button);
button.setOnClickListener(this);
Scringo.setAppId("MY-APP-ID");
Scringo.setDebugMode(true);
scringo = new Scringo(this);
scringo.init();
scringo.addSidebar();
Scringo.loginWithEmail("a#testapp.com", "hi", new ScringoSignUpListener(){
#Override
public void onError(String arg0) {
}
#Override
public void onSuccess(String arg0) {
Log.w("user",Scringo.getUserId());
}
});
}
#Override
public void onClick(View arg0) {
//I am using the ID of another user.
//This does not work. Nothing happens. No error or warning either.
Scringo.openChat(this, "Qk8vJs4fRE");
//This works fine.
//Scringo.openChatRooms(this);
}
}
You should call the openChat after getting the user:
Scringo.getUserByScringoId("SOME_ID...", new ScringoGetUserListener() {
#Override
public void gotUser(ScringoUser user) {
Scringo.openChat(MainActivity.this, "SOME_ID...");
}
});