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POHow to set the background of a layout with a photo from gallery?
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20097215
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2
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11
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2013-11-20T13:24:36.103
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2015-09-09T19:12:28.067
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2013-11-20T13:35:55.910
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2846743
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<p>I have been trying to set the background of the main activity with a photo from the gallery. I have added a button and set its listener. In this listener, I defined the intent for result as follows:</p> <pre><code>Intent intent = new Intent(); intent.setType("image/*"); intent.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult(Intent.createChooser(intent, "Select Picture"), 0); </code></pre> <p>The method I used to receive the result and set the background for the main relative layout is:</p> <pre><code>@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { switch (requestCode) { case 0: data.getDataString(); if (resultCode == RESULT_OK) { try { Bitmap bitmap = MediaStore.Images.Media.getBitmap( getContentResolver(), data.getData()); RelativeLayout bg = (RelativeLayout) findViewById(R.id.mainRL); Drawable drawable = new BitmapDrawable(getResources(), bitmap); bg.setBackgroundDrawable(drawable); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } break; } } } </code></pre> <p>Once the button is pressed, the gallery opens and I can choose photos but after that it crashes. The logCat when the the crash happened is:</p> <pre><code>11-20 21:32:53.381: D/dalvikvm(16734): GC_FOR_ALLOC freed 77K, 8% free 9300K/10051K, paused 20ms, total 20ms 11-20 21:32:53.391: I/dalvikvm-heap(16734): Grow heap (frag case) to 11.075MB for 1521016-byte allocation 11-20 21:32:53.431: D/dalvikvm(16734): GC_CONCURRENT freed <1K, 7% free 10785K/11591K, paused 14ms+2ms, total 37ms 11-20 21:32:53.721: I/webclipboard(16734): clipservice: android.sec.clipboard.ClipboardExManager@427823b0 11-20 21:32:53.791: I/webclipboard(16734): clipservice: android.sec.clipboard.ClipboardExManager@427823b0 11-20 21:32:53.891: D/dalvikvm(16734): GC_CONCURRENT freed 270K, 8% free 10993K/11847K, paused 13ms+12ms, total 40ms 11-20 21:32:54.012: I/webclipboard(16734): clipservice: android.sec.clipboard.ClipboardExManager@427823b0 11-20 21:32:54.282: D/dalvikvm(16734): DexOpt: --- BEGIN 'ads550927314.jar' (bootstrap=0) --- 11-20 21:32:54.412: D/dalvikvm(16734): GC_CONCURRENT freed 207K, 7% free 11673K/12487K, paused 16ms+16ms, total 87ms 11-20 21:32:54.422: V/webkit(16734): BrowserFrame constructor: this=Handler (android.webkit.BrowserFrame) {4277cc40} 11-20 21:32:54.452: D/ProgressBar(16734): setProgressDrawable mProgressDrawable = null, d = android.graphics.drawable.LayerDrawable@427997a8needUpdate = false 11-20 21:32:54.462: D/ProgressBar(16734): setProgress = 0 11-20 21:32:54.462: D/ProgressBar(16734): setProgress = 0, fromUser = false 11-20 21:32:54.462: D/ProgressBar(16734): mProgress = 0mIndeterminate = false, mMin = 0, mMax = 17 11-20 21:32:54.472: W/ResourceType(16734): Failure getting entry for 0x010802c9 (t=7 e=713) in package 0 (error -75) 11-20 21:33:14.943: W/dalvikvm(16967): threadid=1: thread exiting with uncaught exception (group=0x41c612a0) 11-20 21:33:14.993: E/AndroidRuntime(16967): FATAL EXCEPTION: main 11-20 21:33:14.993: E/AndroidRuntime(16967): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.robotaaly.unitbulletconverter/com.robotaaly.unitbulletconverter.CalculationActivity}: java.lang.NullPointerException 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2092) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2117) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.app.ActivityThread.access$700(ActivityThread.java:134) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1218) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.os.Handler.dispatchMessage(Handler.java:99) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.os.Looper.loop(Looper.java:137) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.app.ActivityThread.main(ActivityThread.java:4867) 11-20 21:33:14.993: E/AndroidRuntime(16967): at java.lang.reflect.Method.invokeNative(Native Method) 11-20 21:33:14.993: E/AndroidRuntime(16967): at java.lang.reflect.Method.invoke(Method.java:511) 11-20 21:33:14.993: E/AndroidRuntime(16967): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1007) 11-20 21:33:14.993: E/AndroidRuntime(16967): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:774) 11-20 21:33:14.993: E/AndroidRuntime(16967): at dalvik.system.NativeStart.main(Native Method) 11-20 21:33:14.993: E/AndroidRuntime(16967): Caused by: java.lang.NullPointerException 11-20 21:33:14.993: E/AndroidRuntime(16967): at com.robotaaly.unitbulletconverter.CalculationActivity.calculateFnc(CalculationActivity.java:827) 11-20 21:33:14.993: E/AndroidRuntime(16967): at com.robotaaly.unitbulletconverter.CalculationActivity.access$0(CalculationActivity.java:825) 11-20 21:33:14.993: E/AndroidRuntime(16967): at com.robotaaly.unitbulletconverter.CalculationActivity$2.onTextChanged(CalculationActivity.java:404) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.widget.TextView.sendOnTextChanged(TextView.java:7398) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.widget.TextView.setText(TextView.java:3730) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.widget.TextView.setText(TextView.java:3585) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.widget.EditText.setText(EditText.java:95) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.widget.TextView.setText(TextView.java:3560) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.widget.TextView.onRestoreInstanceState(TextView.java:3460) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.view.View.dispatchRestoreInstanceState(View.java:12012) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2651) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2651) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2651) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2651) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.view.View.restoreHierarchyState(View.java:11990) 11-20 21:33:14.993: E/AndroidRuntime(16967): at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1826) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.app.Activity.onRestoreInstanceState(Activity.java:949) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.app.Activity.performRestoreInstanceState(Activity.java:921) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1145) 11-20 21:33:14.993: E/AndroidRuntime(16967): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2070) 11-20 21:33:14.993: E/AndroidRuntime(16967): ... 11 more 11-20 21:33:15.013: I/Ads(16967): adRequestUrlHtml: <html><head><script src="http://media.admob.com/sdk-core-v40.js"></script><script>AFMA_getSdkConstants();AFMA_buildAdURL({"preqs":0,"session_id":"14165905526806045037","seq_num":"1","slotname":"a1524d822019181","u_w":320,"msid":"com.robotaaly.unitbulletconverter","adtest":"on","js":"afma-sdk-a-v6.4.1","bas_off":0,"net":"null","app_name":"4.android.com.robotaaly.unitbulletconverter","hl":"en","gnt":8,"carrier":"50212","u_audio":1,"kw":[],"u_sd":1.5,"ms":"-JTEbDWqE5u7nUwF2aVwW9cvXVI5UmAeTnAwp_7nyxZY6Az-TVS6TEfG4RGORwQh4OqQNvA4oR5N_L9JJwubWzQazduuBeiGe7bnMOCDQDehxNgy8uuKeiZUmzaKyoyHopVay-XniTmGhjXJ0QQtpQb1Yc4y0rN87j8xGADQKXxX2aFnGkVp-iwhbRBPetLExiQ_U6m-eVeeogJ7Num_zQksZE7XdOds9ChR0idznXGE0sTZqaGy0O1L8oTsjrs7X4tczIDwM_s-nHjzXEQyUQzunKyzxBLsNNXfiPA_3_t-CoV1YDVB9kNltYsag0QpOFfIRhC0i8LfdcV-02mBTw","mv":"16.android","isu":"27B6214A0270F283668371709772C538","format":"320x50_mb","oar":0,"ad_pos":{"height":0,"visible":0,"y":0,"x":0,"width":0},"u_h":533,"pt":1,"bas_on":0,"ptime":0});</script></head><body></body></html> </code></pre> <p>What wrong thing is with this code? Thank you</p>
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How to set the background of a layout with a photo from gallery?
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