獲取屏幕分辨率以及狀態欄標題欄高度最簡潔的辦法

項目中經常要用到屏幕分辨率來計算控件尺寸來適應不同的屏幕，所以寫一下記錄下

直接上佈局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/af"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/id_txt_hello"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" 
        android:textColor="#fff" />

    <TextView
        android:id="@+id/id_txt"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/hah"
        android:text="@string/hello" 
        android:textColor="#000" />
    
</LinearLayout>

直接上代碼：

public class GetStatusBarHeightDemoActivity extends Activity {
	private Window window_;
	/**當前界面根view*/
	private View view_boot_;
	
	private TextView txt_hello_;
	private TextView txt_;
	
	/**屏幕寬度*/
	private int screenWidth_;
	/**屏幕高度*/
	private int screenHeight_;
	
	/**狀態欄高度*/
	private int statusBarHeight_;
	/**標題欄高度*/
	private int titleBarHeight_;
	
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_get_status_and_title_height);
        
        txt_hello_ = (TextView)findViewById(R.id.id_txt_hello);
        txt_ = (TextView)findViewById(R.id.id_txt);
        
        Display display = getWindowManager().getDefaultDisplay(); 
        screenWidth_ = display.getWidth();
        screenHeight_ = display.getHeight();
        
        window_ = getWindow();
        /*取得系統當前顯示的 view根（它是一個framelayout對象）*/
        view_boot_ = window_.findViewById(Window.ID_ANDROID_CONTENT);
      
        txt_hello_.post(new Runnable() {
			public void run() {
				/*獲取相關參數*/
				getRelatedAttributeValue();
			}
		});
    }
    
    /**
     * 獲取相關屬性值
     */
    private void getRelatedAttributeValue(){
    	/*定義一個區域*/
        Rect frame = new Rect();  
        /*區域範圍爲該textview的區域範圍*/
        txt_hello_.getWindowVisibleDisplayFrame(frame);  
        /*獲取狀態欄高度。因爲獲取的區域不包含狀態欄*/
        statusBarHeight_ = frame.top;  
        /*獲取除了狀態欄和標題內容的起始y座標，也就是 狀態欄+標題欄的高度*/
        int contentTop = view_boot_.getTop();  
        /*一減得出標題欄高度*/
        titleBarHeight_ = contentTop - statusBarHeight_;
        
        txt_.setText("屏幕寬度=" + screenWidth_
        		+ "\n屏幕高度=" + screenHeight_
        		+ "\n狀態欄高度=" + statusBarHeight_
				+ "\n標題欄高度=" + titleBarHeight_);
    }
}

如果感覺這個方法獲取到0，還可以參照網上的一個辦法，用反射來獲取：

Class<?> c = null;
Object obj = null;
Field field = null;
 int x = 0, sbar = 0;
try {
	c = Class.forName("com.android.internal.R$dimen");
	obj = c.newInstance();
	field = c.getField("status_bar_height");
	x = Integer.parseInt(field.get(obj).toString());
	sbar = getResources().getDimensionPixelSize(x);
} catch (Exception e1) {
	e1.printStackTrace();
}  

這個辦法在自定義控件裏也很好用。

源代碼：

http://download.csdn.net/detail/zoeice/4401559