Java WallpaperManager.getInstance方法代码示例

import android.app.WallpaperManager; //导入方法依赖的package包/类
/**
 * Create a color filled bitmap and changes the current system wallpaper to this bitmap.
 */
public static void setColorWallpaper(Context context, int color) throws IOException {

    // Get the Wallpaper Manager
    final WallpaperManager wpManager = WallpaperManager.getInstance(context);

    // Create the pitch black bitmap
    final Bitmap pitchBlackBitmap = createColorBitmap(color, MIN_SAFE_SIZE, MIN_SAFE_SIZE);

    // Set the wallpaper
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        // On Android N and above use the new API to set both the general system wallpaper and
        // the lock-screen-specific wallpaper
        wpManager.setBitmap(pitchBlackBitmap, null, true, WallpaperManager.FLAG_SYSTEM | WallpaperManager.FLAG_LOCK);
    } else {
        wpManager.setBitmap(pitchBlackBitmap);
    }
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
private void setWallpaper() {
    try {
        WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
        InputStream inputStream = getContentResolver().openInputStream(imageUri);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            Rect croppedRect = getCroppedRect();
            wallpaperManager.setStream(inputStream, croppedRect, true);
        } else {
            wallpaperManager.setStream(inputStream);
        }

        SubsamplingScaleImageView imageView = findViewById(R.id.imageView);
        imageView.recycle();

        this.finish();
    } catch (IOException | IllegalArgumentException e) {
        e.printStackTrace();
        Toast.makeText(this, R.string.error, Toast.LENGTH_SHORT).show();
    }
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
/**
 * Prompt the user to set our app as live wallpaper if the user has not set it.
 */
private void initSetWallpaperPrompt() {
    final WallpaperManager wm = WallpaperManager.getInstance(getApplicationContext());
    if ((wm.getWallpaperInfo() != null && wm.getWallpaperInfo().getPackageName().equalsIgnoreCase(getPackageName()))) {
        // We are good
    } else {
        // Ask user.
        Snackbar.make(binding.coordinatorLayout, R.string.set_live_wallpaper_promt, Snackbar.LENGTH_INDEFINITE)
                .setAction(android.R.string.ok, new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        launchSetWallpaperScreen();
                    }
                }).show();
    }
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
private void toSetWallPage(Uri data) {
    WallpaperManager wallpaperManager = WallpaperManager.getInstance(mActivity);
    if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){
        File wallpageFile = new File(data.getPath());
        Uri contentUri = getImageContentUri(mActivity,wallpageFile.getAbsolutePath());
        mActivity.startActivity(wallpaperManager.getCropAndSetWallpaperIntent(contentUri));
    }else{
        try {
            wallpaperManager.setStream(mActivity.getContentResolver().openInputStream(data));
            mView.showMsg(MyApplication.getInstance().getString(R.string.set_wallpaper_success));
        } catch (IOException e) {
            e.printStackTrace();
            mView.showMsg(e.getMessage());
        }
    }
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
public static BitmapDrawable getBackground(Context context) {

        WallpaperManager wallpaperManager = WallpaperManager
                .getInstance(context);
        // 获取当前壁纸
        Drawable wallpaperDrawable = wallpaperManager.getDrawable();
        // 将Drawable,转成Bitmap
        Bitmap bm = ((BitmapDrawable) wallpaperDrawable).getBitmap();
        float step = 0;
        // 计算出屏幕的偏移量
        step = (bm.getWidth() - 480) / (7 - 1);
        // 截取相应屏幕的Bitmap
        DisplayMetrics dm = new DisplayMetrics();
        Bitmap pbm = Bitmap.createBitmap(bm, (int) (5 * step), 0,
                dm.widthPixels, dm.heightPixels);

        return new BitmapDrawable(pbm);
    }
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
public static Drawable getWallpaperDrawableWithSizeDrawable(Context context,
                                                            int width, int height, int alpha) {

    WallpaperManager wallpaperManager = WallpaperManager
            .getInstance(context);
    // 获取当前壁纸
    Drawable wallpaperDrawable = wallpaperManager.getDrawable();
    // 将Drawable,转成Bitmap
    Bitmap bm = ((BitmapDrawable) wallpaperDrawable).getBitmap();
    bm = BitmapUtils.getAdpterBitmap(bm, width, height);
    Drawable d = BitmapUtils.Bitmap2Drawable(bm);
    bm = BitmapUtils.setAlpha(bm, alpha);
    if (bm != null && bm.isRecycled()) {
        bm.recycle();
    }
    return d;
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
private void handleCrop(int resultCode, Intent result) {
    if (resultCode == RESULT_OK) {


        mImageView.setImageURI(Crop.getOutput(result));

        WallpaperManager myWallpaperManager = WallpaperManager
                .getInstance(getApplicationContext());

        try {

            Bitmap mBitmap = getImageBitmap();
            myWallpaperManager.setBitmap(mBitmap);
            Toast.makeText(DetailActivity.this, "Wallpaper set",
                    Toast.LENGTH_SHORT).show();

        } catch (IOException e) {
            Toast.makeText(DetailActivity.this,
                    "Error setting wallpaper", Toast.LENGTH_SHORT)
                    .show();
        }

    } else if (resultCode == Crop.RESULT_ERROR) {
        Toast.makeText(this, Crop.getError(result).getMessage(), Toast.LENGTH_SHORT).show();
    }
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
protected void setGradientWallpaper(ArrayList<String> colors) {
    WallpaperManager wpManager = WallpaperManager.getInstance(this.getApplicationContext());
    // Use full screen size so wallpaper is movable.
    int height = wpManager.getDesiredMinimumHeight();
    // Create square bitmap for wallpaper.
    Bitmap wallpaperBitmap = Bitmap.createBitmap(height, height, Bitmap.Config.ARGB_8888);
    // Prepare colors for gradient.
    int[] colorsInt = new int[colors.size()];
    for (int i = 0; i < colors.size(); i++) {
        colorsInt[i] = Color.parseColor(colors.get(i));
    }
    // Create gradient shader.
    Paint paint = new Paint();
    Shader gradientShader = new LinearGradient(0, 0, height, height, colorsInt, null, Shader.TileMode.CLAMP);
    Canvas c = new Canvas(wallpaperBitmap);
    paint.setShader(gradientShader);
    // Draw gradient on bitmap.
    c.drawRect(0, 0, height, height, paint);
    // Add noise.
    //addNoise(wallpaperBitmap);
    setBitmapAsWallpaper(wpManager, wallpaperBitmap);
    // Cleanup.
    wallpaperBitmap.recycle();
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
private void storeLastWallpaper() throws IOException {
    Context context = contextWeakReference.get();
    WallpaperManager wallpaperMgr = WallpaperManager.getInstance(context);
    File lastWallpaperFile = new File(context.getFilesDir(), LAST_WALLPAPER_FILE_NAME);
    if (!lastWallpaperFile.createNewFile()) {
        lastWallpaperFile.delete();
        lastWallpaperFile.createNewFile();
    }
    if (wallpaperMgr.getDrawable() instanceof BitmapDrawable) {
        FileOutputStream outputStream = context.openFileOutput(LAST_WALLPAPER_FILE_NAME,
                Context.MODE_PRIVATE);
        ((BitmapDrawable)wallpaperMgr.getDrawable()).getBitmap().compress(
                Bitmap.CompressFormat.PNG, 100, outputStream);
        outputStream.close();
    }
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
public WallpaperOffsetInterpolator(Workspace workspace) {
    mChoreographer = Choreographer.getInstance();
    mInterpolator = new DecelerateInterpolator(1.5f);

    mWorkspace = workspace;
    mWallpaperManager = WallpaperManager.getInstance(workspace.getContext());
    mIsRtl = Utilities.isRtl(workspace.getResources());
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
public void setWallpaper(View v) {
    WallpaperManager wallpaperManager = WallpaperManager.getInstance(getApplicationContext());
    try {
        wallpaperManager.setBitmap(Wallpaper);
        Toast toast = Toast.makeText(this, "wallpaper set", Toast.LENGTH_SHORT);
        toast.setGravity(Gravity.CENTER, 0, 0);
        toast.show();
    } catch (IOException e) {
        e.printStackTrace();
    }
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
@Override
public void onClick(DialogInterface dialog, int which) {
    switch (which){
        case 0:
            boolean saveSuccess = false;
            if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
                String[] permissions = {Manifest.permission.WRITE_EXTERNAL_STORAGE};
                if(ContextCompat.checkSelfPermission(getActivity(), permissions[0]) != PackageManager.PERMISSION_GRANTED){
                    ActivityCompat.requestPermissions(getActivity(),permissions,0);
                }else {
                    saveSuccess = savePicture(pictureBitmap);
                }
            }else {
                saveSuccess = savePicture(pictureBitmap);
            }
            if(saveSuccess){
                Toast.makeText(getActivity(),"图片已存储在 /miaosou/picture 文件夹下",Toast.LENGTH_SHORT).show();
            }else {
                Toast.makeText(getActivity(),"图片保存失败，请检查SD卡读写权限是否开启",Toast.LENGTH_SHORT).show();
            }
            break;
        case 1:
            WallpaperManager wallpaperManager = WallpaperManager.getInstance(getContext());
            try {
                    wallpaperManager.setBitmap(pictureBitmap);
            } catch (IOException e) {
                e.printStackTrace();
            }
            break;
    }
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
private void initBg() {
    // 获取壁纸管理器
    WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
    Drawable drawable = wallpaperManager.getDrawable();
    // 获取当前壁纸
    Drawable wallpaperDrawable = wallpaperManager.getDrawable();
    // 将Drawable,转成Bitmap
    Bitmap bm = ((BitmapDrawable) wallpaperDrawable).getBitmap();
    splashBg.setImageBitmap(bm);
}
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
/**
     * 使用资源文件设置壁纸
     * 直接设置为壁纸，不会有任何界面和弹窗出现
     *
     * @param view
     */
    public void onSetWallpaperForResource(View view) {
        WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
        try {
            wallpaperManager.setResource(R.raw.wallpaper);
//            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            //WallpaperManager.FLAG_LOCK  WallpaperManager.FLAG_SYSTEM
//                wallpaperManager.setResource(R.raw.wallpaper, WallpaperManager.FLAG_SYSTEM);
//            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 

import android.app.WallpaperManager; //导入方法依赖的package包/类
/**
     * 清除壁纸
     *
     * @param view
     */
    public void clearWallpaper(View view) {
        WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
        try {
            wallpaperManager.clear();
//            clearWallpaper();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }