如何使用Intent制作ImageButton FullScreen

时间:2011-05-19 14:53:42

标签: android android-intent fullscreen imagebutton

我想在全屏显示带有意图的imageButton。我在一个活动中有这个代码:

    String[] columns = { MediaColumns.DATA, BaseColumns._ID, MediaColumns.DISPLAY_NAME,
            ImageColumns.DESCRIPTION, ImageColumns.LATITUDE, ImageColumns.LONGITUDE };

             cursor = managedQuery(Media.EXTERNAL_CONTENT_URI, columns, null, null,
            null);

    fileColumn = cursor.getColumnIndexOrThrow(MediaColumns.DATA);

    imageButton.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            imageFilePath = cursor.getString(fileColumn);
            Intent intent3 = new Intent();
            intent3.setClass(Gallery.this, FullScreen.class);
            intent3.putExtra("imageFilePath", imageFilePath);
            startActivity(intent3);
        }
    });

这是第二项活动:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);

    setContentView(R.layout.fullscreen);

    imageView = (ImageView) findViewById(R.id.ImageView);

    Bundle extras = getIntent().getExtras();
    String imageFilePath = extras.getString("imageFilePath");

    bmp = getBitmap(imageFilePath);

    imageView.setImageBitmap(bmp);
}

private Bitmap getBitmap(String imageFilePath) {
    BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options();

    bmpFactoryOptions.inJustDecodeBounds = false;
    bmp = BitmapFactory.decodeFile(imageFilePath, bmpFactoryOptions);
    return bmp;
}

但是当我点击ImageButton以在全屏模式下看到这个图像时它一直崩溃...任何人都知道任何一段代码或任何程序来做到这一点?谢谢!

LogCat说下一个:

致命的例外:主要

java.lang.OutOfMemoryError:位图大小超过VM预算(堆大小= 5763KB,分配= 2805KB,位图大小= 487KB)

在android.graphics.BitmapFactory.nativeDecodeFile(原生方法)

在android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:355)

at com.geotagging.FullScreen.getBitmap(FullScreen.java:51)

at com.geotagging.FullScreen.onCreate(FullScreen.java:42)

在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093)

在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1780)

在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1837)

在android.app.ActivityThread.access $ 1500(ActivityThread.java:132)

在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1033)

在android.os.Handler.dispatchMessage(Handler.java:99)

在android.os.Looper.loop(Looper.java:143)

在android.app.ActivityThread.main(ActivityThread.java:4196)

at java.lang.reflect.Method.invokeNative(Native Method)

在java.lang.reflect.Method.invoke(Method.java:507)

at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:839)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)

at dalvik.system.NativeStart.main(Native Method)

0 个答案:

没有答案