屏幕尺寸，控件尺寸的获取方法

来源：互联网发布：linux怎么上翻编辑：程序博客网时间：2024/04/30 07:17
在Android中，有时需要获取内容区域，标题区域，状态区域，控件的尺寸，如长宽高，才能精确的布局，使界面更美观。下面就把各种用到的求尺寸的方法汇总，代码如下:一、获取控件尺寸1方法一:2View layout = findViewById(R.id.popwindow_btn);3ViewTreeObserver vto = layout.getViewTreeObserver();4 5    vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {6    public boolean onPreDraw() {7       if (hasMeasured == false) {8 9        int btWidth = layout.getMeasuredWidth();10        int btHeight = layout.getMeasuredHeight();11        hasMeasured = true;12 13      }14        return true;15    }16    });17 18方法二:19    ViewTreeObserver vto = mPopupBtn.getViewTreeObserver();20    vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {21 22        @Override23        public void onGlobalLayout() {24                 if (hasMeasured == false) {25            int btWidth = mPopupBtn.getMeasuredWidth();26            int btHeight = mPopupBtn.getMeasuredHeight();27                        hasMeasured = true;28             }29    });       二、获取状态栏尺寸1/**2     * 状态栏高度3     *4     * @return5     */6    public int getStatusBarHeight() {7        Rect frame = new Rect();8        getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);9        int statusBarHeight = frame.top;10 11        return statusBarHeight;12    }三、获取标题栏尺寸1/**2 * 获取标题栏高度3 *4 * @return5 */6public int getTitleBarHeight() {7    int statusBarHeight = getStatusBarHeight();8    int contentTop = getWindow().findViewById(Window.ID_ANDROID_CONTENT)9            .getTop();10    // statusBarHeight是上面所求的状态栏的高度11    int titleBarHeight = contentTop - statusBarHeight;12    return titleBarHeight;13}14 15public int getTitleBarHeight(){16    return getActionBar().getHeight();17}四、获取手机屏幕尺寸1/**2     * 获取手机屏幕尺寸 width,height3     *4     * @return5     */6    public int[] getScreenSize() {7        DisplayMetrics dm = new DisplayMetrics();8        // 获取屏幕信息9        getWindowManager().getDefaultDisplay().getMetrics(dm);10        int screenWidth = dm.widthPixels;11        int screenHeigh = dm.heightPixels;12 13        return new int[] { screenWidth, screenHeigh };14    }五、获取内容区域尺寸1int contentViewHeight = findViewById(android.R.id.content).getHeight(); // 屏幕内容区域高度<span style="color: rgb(49, 49, 49); font-family: 微软雅黑, 黑体, sans-serif; font-size: 13px; line-height: 22px; background-color: rgb(248, 248, 248);">Android屏幕结构图</span><br style="margin-top: 0px; color: rgb(49, 49, 49); font-family: 微软雅黑, 黑体, sans-serif; font-size: 13px; line-height: 22px; background-color: rgb(248, 248, 248);" /><a target=_blank href="http://it.warmtel.com/wp-content/uploads/2015/07/QQ%E6%88%AA%E5%9B%BE20150701110554.png" rel="fancybox-post-813" title="QQ截图20150701110554" style="border: 0px; outline: 0px; background-color: rgb(248, 248, 248); font-size: 13px; margin: 0px; padding: 0px; vertical-align: baseline; text-decoration: none; color: rgb(41, 163, 235); font-family: 微软雅黑, 黑体, sans-serif; line-height: 22px;"><img class="alignnone  wp-image-815" src="http://it.warmtel.com/wp-content/uploads/2015/07/QQ%E6%88%AA%E5%9B%BE20150701110554.png" alt="QQ截图20150701110554" width="536" height="414" style="border: 0px; outline: 0px; background-color: transparent; margin: 0px; padding: 0px; vertical-align: baseline;" /></a>
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