CODEWITHSUNDEEP
androidimageviewandroid-imageview
Akisha
Akisha

Reputation: 123

How to make an imageView visible after 10secs of a buttonclick?

I need to make my imageview visible after 10seconds of my buttonclick action. I have made my imageview invisible. But when ever I try to set it visible after a sleep(10000) of a thread my aplication crashes. How can I slove this? Please help!

Upvotes: 1

Views: 97

Answers (3)

Daniel Zolnai
Daniel Zolnai

Reputation: 16910

This one is quite short, and will not block the app:

yourButton.setOnClickListener(new View.OnClickListener(){ 
    @Override
    public void onClick(View v) {
        yourImageView.postDelayed(new Runnable() {
            @Override
            public void run() {
                if (yourImageView != null) {
                    yourImageView.setVisibility(View.VISIBLE);
                }
            }
        }, 10000);
    }         
});

Some context: The postDelayed posts a message to the main thread, which will get executed over 10000 milliseconds, which is 10 seconds. When the 10 seconds elapsed, the main thread will take the message, and try to execute the runnable. It could be possible that the button does not exist anymore, because you left the screen, that's why a null-check is required.

Upvotes: 2

chiru
chiru

Reputation: 645

you cannot block your main thread for not more than 5 sec and as well as your thread too. Instead of using threads and making then to sleep, better user Timer.

class MyTimerTask extends TimerTask {

    @Override
    public void run() {

        runOnUiThread(new Runnable() {

            @Override
            public void run() {
                Intent intent = new Intent(SplashScreen.this,
                        MainActivity.class);
                startActivity(intent);

                finish();

            }
        });
    }

}

for more please read here

Upvotes: 0

Saren Arterius
Saren Arterius

Reputation: 1340

I think you did Thread.sleep() on main thread, this is not a right way to do it.

Instead, you could use AsyncTask or Handlers to delay the execution of some code.

button.setOnClickListener(new Button.OnClickListener(){ 
    @Override
    public void onClick(View v) {
        new AsyncTask<Void, Void, Void>() {

            @Override
            protected Void doInBackground(Void... params) {
                Thread.sleep(10000);
                return null;
            }

            @Override
            protected void onPostExecute(Void aVoid) {
                super.onPostExecute(aVoid);
                yourView.setVisibility(VISIBLE);
            }
        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
    }         
});

Upvotes: 0

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