从手机图库中选择图片

这是我的logcat

06-03 17:35:58.603: E/AndroidRuntime(300): FATAL EXCEPTION: main 06-03 17:35:58.603: E/AndroidRuntime(300): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { dat=content://media/external/images/media/1 }} to activity {com.example.fatwallet/com.example.fatwallet.Create_adds_Activity}: java.lang.NullPointerException 06-03 17:35:58.603: E/AndroidRuntime(300): at android.app.ActivityThread.deliverResults(ActivityThread.java:3515) 06-03 17:35:58.603: E/AndroidRuntime(300): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3557) 06-03 17:35:58.603: E/AndroidRuntime(300): at android.app.ActivityThread.access$2800(ActivityThread.java:125) 06-03 17:35:58.603: E/AndroidRuntime(300): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2063) 06-03 17:35:58.603: E/AndroidRuntime(300): at android.os.Handler.dispatchMessage(Handler.java:99) 06-03 17:35:58.603: E/AndroidRuntime(300): at android.os.Looper.loop(Looper.java:123) 06-03 17:35:58.603: E/AndroidRuntime(300): at android.app.ActivityThread.main(ActivityThread.java:4627) 06-03 17:35:58.603: E/AndroidRuntime(300): at java.lang.reflect.Method.invokeNative(Native Method) 06-03 17:35:58.603: E/AndroidRuntime(300): at java.lang.reflect.Method.invoke(Method.java:521) 06-03 17:35:58.603: E/AndroidRuntime(300): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 06-03 17:35:58.603: E/AndroidRuntime(300): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 06-03 17:35:58.603: E/AndroidRuntime(300): at dalvik.system.NativeStart.main(Native Method) 06-03 17:35:58.603: E/AndroidRuntime(300): Caused by: java.lang.NullPointerException 06-03 17:35:58.603: E/AndroidRuntime(300): at com.example.fatwallet.Create_adds_Activity.onActivityResult(Create_adds_Activity.java:101) 06-03 17:35:58.603: E/AndroidRuntime(300): at android.app.Activity.dispatchActivityResult(Activity.java:3890) 06-03 17:35:58.603: E/AndroidRuntime(300): at android.app.ActivityThread.deliverResults(ActivityThread.java:3511)

Answer 1

简单传递意图首先

 Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI); startActivityForResult(i, RESULT_LOAD_IMAGE); 

你将获得关于onActivityResult的图片路径

 @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) { Uri selectedImage = data.getData(); String[] filePathColumn = { MediaStore.Images.Media.DATA }; Cursor cursor = getContentResolver().query(selectedImage,filePathColumn, null, null, null); cursor.moveToFirst(); int columnIndex = cursor.getColumnIndex(filePathColumn[0]); String picturePath = cursor.getString(columnIndex); cursor.close(); ImageView imageView = (ImageView) findViewById(R.id.imgView); imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath)); } } 

这里有完整的源代码