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我正在做一個gridview謎題的鎖屏我已經成功地觸發了屏幕上的screenscreen和屏幕上當我只有在我的lockscrean按鈕時，我添加網格視圖在我的lockscreen活動不會來我屏幕上。添加gridview到鎖屏
下面是我的鎖屏服務，而不GridView控件：
public class LockscreenService extends Service {
private LinearLayout linearLayout;
private WindowManager.LayoutParams layoutParams;
private WindowManager windowManager;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
BroadcastReceiver screenReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF) && linearLayout == null) {
init();
}
}
};
@Override
public void onCreate() {
super.onCreate();
IntentFilter intentFilter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
registerReceiver(screenReceiver, intentFilter);
windowManager = ((WindowManager) getSystemService(WINDOW_SERVICE));
layoutParams = new WindowManager.LayoutParams(
WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
| WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION,
PixelFormat.TRANSLUCENT);
}
private void init() {
linearLayout = new LinearLayout(this);
windowManager.addView(linearLayout, layoutParams);
((LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE)).inflate(R.layout.lockscreen, linearLayout);
// View btnClose = linearLayout.findViewById(R.id.button);
View btnClose = linearLayout.findViewById(R.id.button8);
btnClose.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// do something when the corky3 is clicked
windowManager.removeView(linearLayout);
linearLayout = null;
}
});
}
它給出了一個鎖屏這樣lockscreen without gridview
，當我在初始化加鎖屏到的LinearLayout（）methid這樣
public class LockscreenService extends Service {
String p;
ImageView myImage;
final ArrayList<Bitmap> beforeshuffle = new ArrayList<>(9);
final ArrayList<Bitmap> aftershuffle = new ArrayList<>(9);
ArrayList<Bitmap> smallimages = new ArrayList<Bitmap>(9);
GridView grid;
Bitmap bs;
Bitmap as;
private LinearLayout linearLayout;
private WindowManager.LayoutParams layoutParams;
private WindowManager windowManager;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
BroadcastReceiver screenReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF) && intent.getAction().equals(Intent.ACTION_SCREEN_ON)&& linearLayout == null) {
init();
}
}
};
@Override
public void onCreate() {
Log.d("jhg","inservice");
super.onCreate();
IntentFilter intentFilter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
registerReceiver(screenReceiver, intentFilter);
windowManager = ((WindowManager) getSystemService(WINDOW_SERVICE));
layoutParams = new WindowManager.LayoutParams(
WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
| WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION,
PixelFormat.TRANSLUCENT);
}
private void init() {
// Log.d("hdkjfh","in init");
linearLayout = new LinearLayout(this);
windowManager.addView(linearLayout, layoutParams);
((LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE)).inflate(R.layout.lockscreen, linearLayout);
// View btnClose = linearLayout.findViewById(R.id.button);
// grid = (GridView) linearLayout.findViewById(R.id.gridView);
// grid = (GridView) findViewById(R.id.gridView);
Globalvariable c = new Globalvariable();
String p = c.givedata();
Log.d("fg", p);
bs = c.giveBitmap();
// Bitmap bitmap = (Bitmap) i.getParcelableExtra("bitmap");
//smallimage_Numbers is to tell how many smallimage_s the image should split
int smallimage_Numbers = 9;
//Getting the source image to split
// ImageView image = (ImageView) findViewById(R.id.source_image);
// File imgFile = new File("profile.jpg"
Bitmap myBitmap = BitmapFactory.decodeFile(p);
//Drawable d = new BitmapDrawable(getResources(), myBitmap);
// myImage= (ImageView) linearLayout.findViewById(R.id.My);
// myImage = (ImageView) findViewById(R.id.My);
// myImage.setImageBitmap(myBitmap);
// myImage.setVisibility(View.INVISIBLE);
splitImage(myBitmap, smallimage_Numbers);
View btnClose = linearLayout.findViewById(R.id.button8);
btnClose.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// do something when the corky3 is clicked
Bitmap as = getBitmapFromView(grid);
if (bs.sameAs(as)) {
Toast.makeText(getApplicationContext(), "CORRECT", Toast.LENGTH_SHORT).show();
windowManager.removeView(linearLayout);
linearLayout = null;
} else {
Toast.makeText(getApplicationContext(), "WRONG", Toast.LENGTH_SHORT).show();
}
}
});
}
//invoking this method makes the actual splitting of the source image to given number of smallimage_s
//Image.setImageBitmap(decodeSampledBitmapFromFile(file.getAbsolutePath(), 500, 250));
/**
* Splits the source image and show them all into a grid in a new activity
*
* @param
* @param smallimage_Numbers The target number of small image smallimage_s to be formed from the source image
*/
public void splitImage(Bitmap bit, int smallimage_Numbers) {
//For the number of rows and columns of the grid to be displayed
int rows, cols;
//For height and width of the small image smallimage_s
int smallimage_Height, smallimage_Width;
//To store all the small image smallimage_s in bitmap format in this list
smallimages = new ArrayList<Bitmap>(smallimage_Numbers);
//Getting the scaled bitmap of the source image
// BitmapDrawable mydrawable = (BitmapDrawable) image.getDrawable();
Bitmap bitmap = bit;
Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, bitmap.getWidth(), bitmap.getHeight(), true);
rows = cols = (int) Math.sqrt(smallimage_Numbers);
smallimage_Height = bitmap.getHeight()/rows;
smallimage_Width = bitmap.getWidth()/cols;
//xCo and yCo are the pixel positions of the image smallimage_s
int yCo = 0;
for (int x = 0; x < rows; x++) {
int xCo = 0;
for (int y = 0; y < cols; y++) {
smallimages.add(Bitmap.createBitmap(scaledBitmap, xCo, yCo, smallimage_Width, smallimage_Height));
xCo += smallimage_Width;
}
yCo += smallimage_Height;
}
Array[] in = new Array[9];
//Collections.shuffle(smallimages);
grid.setAdapter(new ImageAdapter(this, smallimages));
grid.setNumColumns((int) Math.sqrt(smallimages.size()));
Collections.shuffle(smallimages);
grid.setAdapter(new ImageAdapter(this, smallimages));
grid.setNumColumns((int) Math.sqrt(smallimages.size()));
grid.setOnItemClickListener(new AdapterView.OnItemClickListener() {
int counter = 0;
int firstclick;
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
counter++;
if (counter % 2 == 0) {
firstclick = position;
Bitmap data1 = smallimages.get(position);
} else {
Bitmap swapImage = smallimages.get(position);
smallimages.set(position, smallimages.get(firstclick));
smallimages.set(firstclick, swapImage);
grid.invalidateViews();
}
for (int i = 0; i < smallimages.size(); i++) {
aftershuffle.add(smallimages.get(i));
}
}
});
//activity to show these smallimage_s into a grid
}
//to compare two bitmaps in gridview
{
@Override
public void onClick (View v){
Bitmap as = getBitmapFromView(grid);
if (bs.sameAs(as)) {
Toast.makeText(getApplicationContext(), "CORRECT", Toast.LENGTH_SHORT).show();
windowManager.removeView(linearLayout);
linearLayout = null;
} else {
Toast.makeText(getApplicationContext(), "WRONG", Toast.LENGTH_SHORT).show();
}
}
});
*/
public static Bitmap getBitmapFromView(View view){
Bitmap bitmap =Bitmap.createBitmap(view.getWidth(),view.getHeight(),Bitmap.Config.ARGB_8888);
Canvas canvas =new Canvas(bitmap);
Drawable bgDrawable = view.getBackground();
if (bgDrawable!=null)
bgDrawable.draw(canvas);
else
canvas.drawColor(Color.WHITE);
view.draw(canvas);
return bitmap;
}
}
當我點擊屏幕時，它不會返回任何內容。幫助我在我的鎖屏中顯示我的洗牌網格視圖。