我创建了一个位图,然后将该位图设置为 byteArray
addCheckbox
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (addCheckbox.isChecked()) {
System.out.println("Checked");
PackageManager pm = mContext.getPackageManager();
Drawable icon = null;
try {
icon = pm
.getApplicationIcon(entry.activityInfo.packageName);
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Drawable default_icon = pm.getDefaultActivityIcon();
if (icon instanceof BitmapDrawable
&& default_icon instanceof BitmapDrawable) {
BitmapDrawable icon_bd = (BitmapDrawable) icon;
Bitmap icon_b = icon_bd.getBitmap();
BitmapDrawable default_bd = (BitmapDrawable) pm
.getDefaultActivityIcon();
Bitmap default_b = default_bd.getBitmap();
if (icon_b == default_b) {
// It's the default icon
scaleDownBitmap(default_b, 100, v.getContext());
Log.d("AppInfoAdapter", "Scale Bitmap Chosen");
ByteArrayOutputStream stream = new ByteArrayOutputStream();
default_b.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
Log.d("AppInfoAdapter", "Scale Bitmap to Array");
Intent intent = new Intent(v.getContext(), GridViewAdapter.class);
intent.putExtra("picture", byteArray);
v.getContext().startActivity(intent);
Log.d("AppInfoAdapter", "Intent started to send Bitmap");
}
}
} else {
System.out.println("Un-Checked");
}
}
});
并尝试在我的 GridView 中将其设置为图像:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.drag_and_drop_app);
Log.d("GridView", "onCreate called");
drawables.add(R.drawable.pattern1);
drawables.add(R.drawable.pattern2);
Bundle extras = getIntent().getExtras();
byte[] byteArray = extras.getByteArray("picture");
Bitmap default_b = BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length);
view.setImageBitmap(default_b); !THIS LINE IS NOT CORRECT!
drawables.add(default_b); !THIS LINE IS NOT CORRECT!
然后这是我的 gridView 适配器:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Try to reuse the views
ImageView view = (ImageView) convertView;
// if convert view is null then create a new instance else reuse it
if (view == null) {
view = new ImageView(mContextGV);
}
view.setImageResource(drawables.get(position));
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
view.setLayoutParams(new android.widget.GridView.LayoutParams(70, 70));
view.setTag(String.valueOf(position));
return view;
}
当然不是完整的适配器,而只是我获得视图的部分
所以我无法在 gridView 适配器中获取位图,因为 getIntent() 不适用于基本适配器,所以我试图在调用我的适配器的类中获取它。我不知道该怎么做。我已经尝试将它添加到我的 drawables ArrayList 中,然后将其设置为视图,但这不起作用。我将如何获得这个额外的?(((我怎样才能获取数组,然后设置它以使其显示在我的 GridView 中?))
因此,要了解我想要做的事情是从我的适配器获取视图,然后将我在附加组件中获得的位图设置为 setImageBitmap()?我可以这样做(如果没有,怎么做???)