android.app.WallpaperManager Java Exaples

Source File: PictureActivity.java From Moment with GNU General Public License v3.0

7 votes

private void setWallpaper() {
    Observable.just(null)
            .compose(bindToLifecycle())
            .compose(ensurePermissions(Manifest.permission.WRITE_EXTERNAL_STORAGE))
            .filter(granted -> {
                if (granted) {
                   return true;
                } else {
                    Toasty.info(this, getString(R.string.permission_required),
                            Toast.LENGTH_LONG).show();
                    return false;
                }
            })
            .flatMap(granted -> download(picture.downloadUrl))
            .map(file -> FileProvider.getUriForFile(this, AUTHORITIES, file))
            .doOnNext(uri -> {
                final WallpaperManager wm = WallpaperManager.getInstance(this);
                startActivity(wm.getCropAndSetWallpaperIntent(uri));
            })
            .subscribe();
}

Source File: WallpaperCropActivity.java From LB-Launcher with Apache License 2.0

6 votes

static public void suggestWallpaperDimension(Resources res,
        final SharedPreferences sharedPrefs,
        WindowManager windowManager,
        final WallpaperManager wallpaperManager, boolean fallBackToDefaults) {
    final Point defaultWallpaperSize = getDefaultWallpaperSize(res, windowManager);
    // If we have saved a wallpaper width/height, use that instead

    int savedWidth = sharedPrefs.getInt(WALLPAPER_WIDTH_KEY, -1);
    int savedHeight = sharedPrefs.getInt(WALLPAPER_HEIGHT_KEY, -1);

    if (savedWidth == -1 || savedHeight == -1) {
        if (!fallBackToDefaults) {
            return;
        } else {
            savedWidth = defaultWallpaperSize.x;
            savedHeight = defaultWallpaperSize.y;
        }
    }

    if (savedWidth != wallpaperManager.getDesiredMinimumWidth() ||
            savedHeight != wallpaperManager.getDesiredMinimumHeight()) {
        wallpaperManager.suggestDesiredDimensions(savedWidth, savedHeight);
    }
}

Source File: AbstractRemoteViewsPresenter.java From GeometricWeather with GNU Lesser General Public License v3.0

6 votes

public static boolean isLightWallpaper(Context context) {
    if (ActivityCompat.checkSelfPermission(context,
            Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
        return false;
    }

    try {
        WallpaperManager manager = WallpaperManager.getInstance(context);
        if (manager == null) {
            return false;
        }

        Drawable drawable = manager.getDrawable();
        if (!(drawable instanceof BitmapDrawable)) {
            return false;
        }

        return DisplayUtils.isLightColor(
                DisplayUtils.bitmapToColorInt(((BitmapDrawable) drawable).getBitmap())
        );
    } catch (Exception ignore) {
        return false;
    }
}

Source File: SystemBitmap.java From BigApp_Discuz_Android with Apache License 2.0

6 votes

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);
    }

Source File: SystemBitmap.java From BigApp_Discuz_Android with Apache License 2.0

6 votes

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;
}

Source File: PhotoDetailPresenterImpl.java From ZZShow with Apache License 2.0

6 votes

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());
        }
    }
}

Source File: WallpaperPickerActivity.java From Trebuchet with GNU General Public License v3.0

6 votes

@Override
public void onClick(WallpaperPickerActivity a) {
    CropView c = a.getCropView();
    Drawable defaultWallpaper = WallpaperManager.getInstance(a.getContext())
            .getBuiltInDrawable(c.getWidth(), c.getHeight(), false, 0.5f, 0.5f);
    if (defaultWallpaper == null) {
        Log.w(TAG, "Null default wallpaper encountered.");
        c.setTileSource(null, null);
        return;
    }

    LoadRequest req = new LoadRequest();
    req.moveToLeft = false;
    req.touchEnabled = false;
    req.scaleProvider = new CropViewScaleProvider() {

        @Override
        public float getScale(TileSource src) {
            return 1f;
        }
    };
    req.result = new DrawableTileSource(a.getContext(),
            defaultWallpaper, DrawableTileSource.MAX_PREVIEW_SIZE);
    a.onLoadRequestComplete(req, true);
}

Source File: WallpaperEffectsFragment.java From android-kernel-tweaker with GNU General Public License v3.0

6 votes

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
	super.onCreateView(inflater, container, savedInstanceState);
	View v = inflater.inflate(R.layout.wallpaper_effects, container,false);

	mWall = (ImageView) v.findViewById(R.id.wall);
	mBlur = (SeekBar) v.findViewById(R.id.sb_blur);
	mApply = (Button) v.findViewById(R.id.btn_apply);
	mWall.setDrawingCacheEnabled(true);
	mBlur.setMax(25);

	mBlur.setOnSeekBarChangeListener(this);
	mApply.setOnClickListener(this);
	
	wallpaperManager = WallpaperManager.getInstance(getActivity());
	final Drawable wallpaperDrawable = wallpaperManager.getDrawable();

	mWall.setImageDrawable(wallpaperDrawable);

	source = drawableToBitmap(wallpaperDrawable);

	return v;
}

Source File: ShortcutAndWidgetContainer.java From Trebuchet with GNU General Public License v3.0

6 votes

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    int count = getChildCount();
    for (int i = 0; i < count; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
            int childLeft = lp.x;
            int childTop = lp.y;
            child.layout(childLeft, childTop, childLeft + lp.width, childTop + lp.height);

            if (lp.dropped) {
                lp.dropped = false;

                final int[] cellXY = mTmpCellXY;
                getLocationOnScreen(cellXY);
                mWallpaperManager.sendWallpaperCommand(getWindowToken(),
                        WallpaperManager.COMMAND_DROP,
                        cellXY[0] + childLeft + lp.width / 2,
                        cellXY[1] + childTop + lp.height / 2, 0, null);
            }
        }
    }
}

Source File: WallpaperUtils.java From Trebuchet with GNU General Public License v3.0

6 votes

public static void suggestWallpaperDimension(Resources res,
        final SharedPreferences sharedPrefs,
        WindowManager windowManager,
        final WallpaperManager wallpaperManager, boolean fallBackToDefaults) {
    final Point defaultWallpaperSize = WallpaperUtils.getDefaultWallpaperSize(res, windowManager);
    // If we have saved a wallpaper width/height, use that instead

    int savedWidth = sharedPrefs.getInt(WALLPAPER_WIDTH_KEY, -1);
    int savedHeight = sharedPrefs.getInt(WALLPAPER_HEIGHT_KEY, -1);

    if (savedWidth == -1 || savedHeight == -1) {
        if (!fallBackToDefaults) {
            return;
        } else {
            savedWidth = defaultWallpaperSize.x;
            savedHeight = defaultWallpaperSize.y;
        }
    }

    if (savedWidth != wallpaperManager.getDesiredMinimumWidth() ||
            savedHeight != wallpaperManager.getDesiredMinimumHeight()) {
        wallpaperManager.suggestDesiredDimensions(savedWidth, savedHeight);
    }
}

Source File: ShortcutAndWidgetContainer.java From TurboLauncher with Apache License 2.0

6 votes

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    int count = getChildCount();
    for (int i = 0; i < count; i++) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
            int childLeft = lp.x;
            int childTop = lp.y;
            child.layout(childLeft, childTop, childLeft + lp.width, childTop + lp.height);

            if (lp.dropped) {
                lp.dropped = false;

                final int[] cellXY = mTmpCellXY;
                getLocationOnScreen(cellXY);
                mWallpaperManager.sendWallpaperCommand(getWindowToken(),
                        WallpaperManager.COMMAND_DROP,
                        cellXY[0] + childLeft + lp.width / 2,
                        cellXY[1] + childTop + lp.height / 2, 0, null);
            }
        }
    }
}

Source File: WallpaperCropActivity.java From TurboLauncher with Apache License 2.0

6 votes

protected void updateWallpaperDimensions(int width, int height) {
    String spKey = getSharedPreferencesKey();
    SharedPreferences sp = getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS);
    SharedPreferences.Editor editor = sp.edit();
    if (width != 0 && height != 0) {
        editor.putInt(WALLPAPER_WIDTH_KEY, width);
        editor.putInt(WALLPAPER_HEIGHT_KEY, height);
    } else {
        editor.remove(WALLPAPER_WIDTH_KEY);
        editor.remove(WALLPAPER_HEIGHT_KEY);
    }
    editor.commit();

    suggestWallpaperDimension(getResources(),
            sp, getWindowManager(), WallpaperManager.getInstance(this));
}

Source File: DetailActivity.java From Dashboard with MIT License

6 votes

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();
    }
}

Source File: PhotoViewerFragment.java From glimmr with Apache License 2.0

6 votes

private void onWallpaperButtonClick() {
    Toast.makeText(mActivity, mActivity.getString(R.string.setting_wallpaper),
            Toast.LENGTH_SHORT).show();
    if (mBasePhoto != null) {
        String url = getLargestUrlAvailable(mBasePhoto);
        new DownloadPhotoTask(mActivity, new Events.IPhotoDownloadedListener() {
            @Override
            public void onPhotoDownloaded(Bitmap bitmap, Exception e) {
                if (e == null) {
                    WallpaperManager wallpaperManager = WallpaperManager.getInstance(mActivity);
                    try {
                        wallpaperManager.setBitmap(bitmap);
                    } catch (IOException e1) {
                        e1.printStackTrace();
                    }
                } else {
                    Log.e(TAG, "Error setting wallpaper");
                    e.printStackTrace();
                }
            }
        }, url).execute();
    }
}

Source File: DetailActivity.java From Dashboard with MIT License

6 votes

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();
    }
}

Source File: WallpaperPickerActivity.java From TurboLauncher with Apache License 2.0

6 votes

@Override
public void onClick(WallpaperPickerActivity a) {
    CropView c = a.getCropView();

    Drawable defaultWallpaper = WallpaperManager.getInstance(a).getBuiltInDrawable(
            c.getWidth(), c.getHeight(), false, 0.5f, 0.5f);

    if (defaultWallpaper == null) {
        Log.w(TAG, "Null default wallpaper encountered.");
        c.setTileSource(null, null);
        return;
    }

    c.setTileSource(
            new DrawableTileSource(a, defaultWallpaper, DrawableTileSource.MAX_PREVIEW_SIZE), null);
    c.setScale(1f);
    c.setTouchEnabled(false);
    a.setSystemWallpaperVisiblity(false);
}

Source File: SetWallpaperTask.java From Theogony with MIT License

5 votes

@Override
protected Boolean doInBackground(Bitmap... params) {
    Bitmap bitmap = params[0];
    try {
        if (bitmap != null) {
            WallpaperManager wallpaperManager = WallpaperManager.getInstance(mContext);
            wallpaperManager.setBitmap(bitmap);
            return true;
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return false;
}

Source File: MainActivity.java From drip-steps with Apache License 2.0

5 votes

@Override
public void onConnected(Bundle bundle) {
	Intent intent = new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER);
	intent.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT, new ComponentName(MainActivity.this, DripWallpaperService.class));
	startActivity(intent);
	finish();
}

Source File: Workspace.java From Trebuchet with GNU General Public License v3.0

5 votes

/**
 * Used to inflate the Workspace from XML.
 *
 * @param context The application's context.
 * @param attrs The attributes set containing the Workspace's customization values.
 * @param defStyle Unused.
 */
public Workspace(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);

    mOutlineHelper = HolographicOutlineHelper.obtain(context);

    mHideIconLabels = SettingsProvider.getBoolean(context,
            SettingsProvider.SETTINGS_UI_HOMESCREEN_HIDE_ICON_LABELS,
            R.bool.preferences_interface_homescreen_hide_icon_labels_default);

    mLauncher = (Launcher) context;
    mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this);
    final Resources res = getResources();
    DeviceProfile grid = mLauncher.getDeviceProfile();
    mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens();
    mFadeInAdjacentScreens = false;
    mWallpaperManager = WallpaperManager.getInstance(context);

    TypedArray a = context.obtainStyledAttributes(attrs,
            R.styleable.Workspace, defStyle, 0);
    mSpringLoadedShrinkFactor =
            res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f;
    mOverviewModeShrinkFactor =
            res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100f;
    mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1);
    a.recycle();

    setOnHierarchyChangeListener(this);
    setHapticFeedbackEnabled(false);

    initWorkspace();

    // Disable multitouch across the workspace/all apps/customize tray
    setMotionEventSplittingEnabled(true);
}

Source File: wallpaper.java From cordova-plugin-wallpaper with Apache License 2.0

5 votes

public void setlockwp(String image, Boolean base64, Context context)
{
	try
	{
		AssetManager assetManager = context.getAssets();
		Bitmap bitmap;
		if(base64) //Base64 encoded
		{
			byte[] decoded = android.util.Base64.decode(image, android.util.Base64.DEFAULT);
			bitmap = BitmapFactory.decodeByteArray(decoded, 0, decoded.length);
		}
		else //normal path
		{
			InputStream instr = assetManager.open("www/" + image);
			bitmap = BitmapFactory.decodeStream(instr);
		}
		if (android.os.Build.VERSION.SDK_INT>=24) {
			WallpaperManager ujWallpaperManager = WallpaperManager.getInstance(context);
			ujWallpaperManager.setBitmap(bitmap, null, true, WallpaperManager.FLAG_LOCK);
			Log.d("console", "lockscreen wallpaper set");
		}
	}
	catch (IOException e)
	{
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
}

Source File: PlayDetailActivity.java From BeMusic with Apache License 2.0

5 votes

private void setWallpaper () {
    WallpaperManager manager = WallpaperManager.getInstance(this);
    boolean canSetWallpaper = true;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        canSetWallpaper &= manager.isWallpaperSupported();
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        canSetWallpaper &= manager.isSetWallpaperAllowed();
    }
    if (canSetWallpaper) {
        Song song = PlayManager.getInstance(this).getCurrentSong();
        if (song != null) {
            Album album = song.getAlbumObj();
            if (album == null) {
                return;
            }
            File source = new File(album.getAlbumArt());
            if (source.exists()) {
                Bitmap bmp = BitmapFactory.decodeFile(source.getAbsolutePath());
                try {
                    manager.setBitmap(bmp);
                } catch (IOException e) {
                    e.printStackTrace();
                } finally {
                    bmp.recycle();
                }
            }
        }
    }
}

Source File: Workspace.java From Trebuchet with GNU General Public License v3.0

5 votes

protected void onWallpaperTap(MotionEvent ev) {
    final int[] position = mTempCell;
    getLocationOnScreen(position);

    int pointerIndex = ev.getActionIndex();
    position[0] += (int) ev.getX(pointerIndex);
    position[1] += (int) ev.getY(pointerIndex);

    mWallpaperManager.sendWallpaperCommand(getWindowToken(),
            ev.getAction() == MotionEvent.ACTION_UP
                    ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP,
            position[0], position[1], 0, null);
}

Source File: WallpaperUtil.java From earth with GNU General Public License v3.0

5 votes

static void changeLiveWallPaper(Context context) {
    Intent intent = new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER);

    intent.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT,
            new ComponentName(context, EarthWallpaperService.class));

    intent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);

    try {
        context.startActivity(intent);
    } catch (ActivityNotFoundException ignored) {
    }
}

Source File: SystemBitmap.java From BigApp_Discuz_Android with Apache License 2.0

5 votes

public static Bitmap getWallpaperDrawableWithSizeBitmap(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);
    bm = BitmapUtils.setAlpha(bm, alpha);

    return bm;
}

Source File: LockScreenWallPaper.java From xDrip with GNU General Public License v3.0

5 votes

@SuppressLint("WrongConstant")
public static void setBitmap(final Bitmap bitmap) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        try {
            final WallpaperManager wallpaperManager = WallpaperManager.getInstance(xdrip.getAppContext());
            final Bitmap wallpaper = BitmapUtil.getTiled(bitmap, getScreenWidth(), getScreenHeight(), isLockScreenBitmapTiled(), Pref.getString(NumberWallPreview.ViewModel.PREF_numberwall_background, null));
            wallpaperManager.setBitmap(wallpaper, null, false, FLAG_LOCK);
            wallpaper.recycle();
        } catch (Exception e) {
            UserError.Log.e(TAG, "Failed to set wallpaper: " + e);
        }
    }
}

Source File: Desktop.java From openlauncher with Apache License 2.0

5 votes

@Override
protected void onPageScrolled(int position, float offset, int offsetPixels) {
    Definitions.WallpaperScroll scroll = Setup.appSettings().getDesktopWallpaperScroll();
    float xOffset = (position + offset) / (_pages.size() - 1);
    if (scroll.equals(Inverse)) {
        xOffset = 1f - xOffset;
    } else if (scroll.equals(Off)) {
        xOffset = 0.5f;
    }

    WallpaperManager wallpaperManager = WallpaperManager.getInstance(getContext());
    wallpaperManager.setWallpaperOffsets(getWindowToken(), xOffset, 0.0f);
    super.onPageScrolled(position, offset, offsetPixels);
}

Source File: MyScrollView.java From palmsuda with Apache License 2.0

5 votes

public MyScrollView(Context context, AttributeSet attrs, int defStyle) {

		super(context, attrs, defStyle);
		mWallpaperManager = WallpaperManager.getInstance(context);
		mScroller = new Scroller(context);
		mCurScreen = mDefaultScreen;
		mTouchSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
	}

Source File: PhotoUtil.java From GankLock with GNU General Public License v3.0

5 votes

public static void setWallPaper(Context context,File file){
    WallpaperManager manager = WallpaperManager.getInstance(context);
    try {
        manager.setBitmap(BitmapFactory.decodeFile(file.getAbsolutePath()));
    } catch (IOException e) {
        e.printStackTrace();
    }
}

Source File: WallpaperManagerService.java From android_9.0.0_r45 with Apache License 2.0

5 votes

public WallpaperManagerService(Context context) {
    if (DEBUG) Slog.v(TAG, "WallpaperService startup");
    mContext = context;
    mShuttingDown = false;
    mImageWallpaper = ComponentName.unflattenFromString(
            context.getResources().getString(R.string.image_wallpaper_component));
    mDefaultWallpaperComponent = WallpaperManager.getDefaultWallpaperComponent(context);
    mIWindowManager = IWindowManager.Stub.asInterface(
            ServiceManager.getService(Context.WINDOW_SERVICE));
    mIPackageManager = AppGlobals.getPackageManager();
    mAppOpsManager = (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE);
    mMonitor = new MyPackageMonitor();
    mColorsChangedListeners = new SparseArray<>();
}

Source File: SetWallpaperActivity.java From Camera-Roll-Android-App with Apache License 2.0

5 votes

private void setWallpaper(int which) {
    try {
        WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
        InputStream inputStream = getContentResolver().openInputStream(imageUri);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            Rect croppedRect = getCroppedRect();
            switch (which) {
                case HOME_SCREEN:
                    wallpaperManager.setStream(inputStream, croppedRect, true, WallpaperManager.FLAG_SYSTEM);
                    break;
                case LOCK_SCREEN:
                    wallpaperManager.setStream(inputStream, croppedRect, true, WallpaperManager.FLAG_LOCK);
                    break;
                case BOTH:
                    wallpaperManager.setStream(inputStream, croppedRect, true);
                    break;
            }
        } 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();
    }
}

android.app.WallpaperManager Java Examples