Android获得标题栏和状态栏高度，以及立即获取控件的高度

直接看代码注释吧

 

package com.test01;import android.app.Activity;import android.graphics.Rect;import android.os.Bundle;import android.view.ViewTreeObserver;import android.view.Window;import android.widget.TextView;public class Test01Activity extends Activity {/** * 必须要设置一个View作为参照物 */private TextView tv;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        tv = (TextView) findViewById(R.id.tv);        // 必须用这种方法获得。不用得到的数据为0        tv.post(new Runnable() {public void run() {init();}});                // 获取控件的高度        ViewTreeObserver vto = tv.getViewTreeObserver();        vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {            public boolean onPreDraw() {                int height = tv.getMeasuredHeight();                int width = tv.getMeasuredWidth();                System.out.println(height+",,"+width);                return true;            }        });    }        private void init(){    Rect rect = new Rect();    Window window = getWindow();    tv.getWindowVisibleDisplayFrame(rect);    // 状态栏的高度    int statusBarHeight = rect.top;    // 标题栏跟状态栏的总体高度    int contentViewTop = window.findViewById(Window.ID_ANDROID_CONTENT).getTop();    // 标题栏的高度：用上面的值减去状态栏的高度及为标题栏高度    int titleBarHeight = contentViewTop - statusBarHeight;    System.out.println(statusBarHeight+"..."+contentViewTop+"..."+titleBarHeight);    }}