Android 获取屏幕相关信息

来源：互联网发布：无法进入linux系统编辑：程序博客网时间：2024/06/02 12:14

为了今后使用更加方便，下面整理一些常用的屏幕相关信息的方法

1. 获取屏幕高度

/**  * 获得屏幕高度  * @param context  */public static int getScreenWidth(Context context) {    WindowManager wm = (WindowManager) context                 .getSystemService(Context.WINDOW_SERVICE);    DisplayMetrics outMetrics = new DisplayMetrics();    wm.getDefaultDisplay().getMetrics(outMetrics);    return outMetrics.widthPixels;}

2. 获取屏幕高度

/**   * 获得屏幕宽度   * @param context   * @return   */public static int getScreenHeight(Context context) {    WindowManager wm = (WindowManager) context                 .getSystemService(Context.WINDOW_SERVICE);    DisplayMetrics outMetrics = new DisplayMetrics();    wm.getDefaultDisplay().getMetrics(outMetrics);    return outMetrics.heightPixels;}

3. 获取状态栏的高度

/**   * 获得状态栏的高度   * @param context   * @return   */public static int getStatusHeight(Context context) {    int statusHeight;    try {        Class<?> clazz = Class.forName("com.android.internal.R$dimen");        Object object = clazz.newInstance();        int height = Integer.parseInt(clazz.getField("status_bar_height")                 .get(object).toString());        statusHeight = context.getResources().getDimensionPixelSize(height);    } catch (Exception e) {        e.printStackTrace();    }    return statusHeight;}

4.获取导航栏高度

/**  * 获取导航栏高度  * @param context  * @return  */public static int getNavigationBarHeight(Context context) {    int resourceId;    int rid = context.getResources().getIdentifier("config_showNavigationBar", "bool", "android");    if (rid!=0){        resourceId = context.getResources().getIdentifier("navigation_bar_height", "dimen", "android");        return context.getResources().getDimensionPixelSize(resourceId);    }else        return 0;}

5.获取当前屏幕截图，包含状态栏部分

/**   * 获取当前屏幕截图，包含状态栏   * @param activity   * @return   */public static Bitmap snapShotWithStatusBar(Activity activity) {    View view = activity.getWindow().getDecorView();    view.setDrawingCacheEnabled(true);    view.buildDrawingCache();    Bitmap bmp = view.getDrawingCache();    int width = getScreenWidth(activity);    int height = getScreenHeight(activity);    Bitmap bp = null;    bp = Bitmap.createBitmap(bmp, 0, 0, width, height);    view.destroyDrawingCache();    return bp;}

6. 获取当前屏幕截图，不包含状态栏部分

/**   * 获取当前屏幕截图，不包含状态栏   * @param activity   * @return   */public static Bitmap snapShotWithoutStatusBar(Activity activity) {    View view = activity.getWindow().getDecorView();    view.setDrawingCacheEnabled(true);    view.buildDrawingCache();    Bitmap bmp = view.getDrawingCache();    Rect frame = new Rect();    activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);    int statusBarHeight = frame.top;    int width = getScreenWidth(activity);    int height = getScreenHeight(activity);    Bitmap bp = null;    bp = Bitmap.createBitmap(bmp, 0, statusBarHeight, width, height - statusBarHeight);    view.destroyDrawingCache();    return bp;}   private void snapshotForActivity() {        View view = findViewById(android.R.id.content);        boolean drawingCacheEnabled = view.isDrawingCacheEnabled();        view.setDrawingCacheEnabled(true);        view.buildDrawingCache();//        if (PREV_BACKGROUND != null)//            PREV_BACKGROUND.recycle();        Bitmap drawingCache = view.getDrawingCache();        if (drawingCache != null && !drawingCache.isRecycled()) {           Bitmap.createBitmap(drawingCache);        }        view.setDrawingCacheEnabled(drawingCacheEnabled);    }

7. 展开、收起状态栏

(1) 收起状态栏

可用于点击Notifacation之后收起状态栏

/**  * 收起状态栏  * @param activity  * @return  */public static final void collapseStatusBar(Context context) {    Object sbservice = context.getSystemService("statusbar");    try {        Class<?> statusBarManager = Class.forName("android.app.StatusBarManager");        Method collapse;        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {            collapse = statusBarManager.getMethod("collapsePanels");        } else {            collapse = statusBarManager.getMethod("collapse");        }        collapse.invoke(sbservice);    } catch (Exception e) {        e.printStackTrace();    }}

(2) 展开状态栏

/**  * 展开状态栏  * @param activity  * @return  */public static final void expandStatusBar(Context context) {    Object sbservice = context.getSystemService("statusbar");    try {        Class<?> statusBarManager = Class.forName("android.app.StatusBarManager");        Method expand;        if (Build.VERSION.SDK_INT >= 17) {            expand = statusBarManager.getMethod("expandNotificationsPanel");        } else {            expand = statusBarManager.getMethod("expand");        }        expand.invoke(sbservice);    } catch (Exception e) {        e.printStackTrace();    }}

持续更新…

0 0