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POAndroid: camera's startPreview method not working after stopPreview
 

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  1. POAndroid: camera's startPreview method not working after stopPreview
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    <p>In my application i have an image button that basically switches on and off the flash LED. The code is running fine for the first time i.e. On first Click it Switches On the LED and on the Second Click it Switches it Off. But then Nothing happens third Click onwards. I am testing this on Nexus S.</p> <p>Following is the Code for the ImageButton Click Method.</p> <pre><code>public void ToggleTorch(){ final ImageButton tt = (ImageButton)findViewById(R.id.tt); tt.setOnClickListener(new OnClickListener(){ @Override public void onClick(View v){ if (isFlashOn){ mycam.stopPreview(); isFlashOn = false; } else { mycam.startPreview(); isFlashOn = true; } } }); } </code></pre> <p>From what i think, it has to do something with the SurfaceView as i think it is not being destroyed while calling stopPreview but i am not sure.. </p> <p>Following is the Code for the onCreate Method.</p> <pre><code>@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //Check if Flash Light is Available Boolean has_flash = this.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH); if(has_flash){ setContentView(R.layout.activity_main); SurfaceView preview = (SurfaceView)findViewById(R.id.pSv); SurfaceHolder holder = preview.getHolder(); holder.addCallback(this); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); disableSleepMode(); initFlashLight(); ToggleTorch(); screenTorchOn(); } else { setContentView(R.layout.activity_main); disableSleepMode(); screenTorchOn(); } } </code></pre> <p>any help would be appreciated. Thanks.</p>
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    1. USAmyth
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    1. COWhat is the downvote for ? fun ?
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    2. COBecause ppl think others should understand Androids poorly designed API.
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      1. USzezba9000
 

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