Android获取屏幕高度、状态栏高度、标题栏高度
2016-05-24 14:44
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在android应用中,有时需要计算个View的位置,导致需要计算状态栏高度,标题栏高度等信息。为以后方便,在此做个简单记录。
晒代码前先了解一下Android屏幕区域的划分,如下图(该图引用自此文http://www.iteye.com/topic/828830 )
1、 屏幕区域的获取
[java] view
plaincopy
activity.getWindowManager().getDefaultDisplay();
2、应用区域的获取
[java] view
plaincopy
Rect outRect = new Rect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(outRect);
其中,outRect.top 即是状态栏高度。
3、view绘制区域获取
[java] view
plaincopy
Rect outRect = new Rect();
activity.getWindow().findViewById(Window.ID_ANDROID_CONTENT).getDrawingRect(outRect);
用绘制区域的outRect.top - 应用区域的outRect.top 即是标题栏的高度。
注意: 如果刚启动Activity时就要计算这些数据,最好在 onWindowFocusChanged 函数中进行, 否则得到的某些数据可能是错误的,比如,应用区域高宽的获取。
详细代码如下:
[java] view
plaincopy
public class ScreenSize extends Activity {
private TextView mScreenSizeView ;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_screen_size);
mScreenSizeView = (TextView) findViewById(R.id.screen_size);
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
if(hasFocus){
System.out.println("second");
StringBuilder sb = new StringBuilder();
Dimension dimen1 = getAreaOne(this);
Dimension dimen2 = getAreaTwo(this);
Dimension dimen3 = getAreaThree(this);
sb.append("Area one : \n\tWidth: "+dimen1.mWidth + ";\tHeight: "+dimen1.mHeight);
sb.append("\nArea two: \n\tWidth: "+dimen2.mWidth + ";\tHeight: "+dimen2.mHeight);
sb.append("\nArea three: \n\tWidth: "+dimen3.mWidth + ";\tHeight: "+dimen3.mHeight);
mScreenSizeView.setText(sb.toString());
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_screen_size, menu);
return true;
}
private Dimension getAreaOne(Activity activity){
Dimension dimen = new Dimension();
Display disp = activity.getWindowManager().getDefaultDisplay();
Point outP = new Point();
disp.getSize(outP);
dimen.mWidth = outP.x ;
dimen.mHeight = outP.y;
return dimen;
}
private Dimension getAreaTwo(Activity activity){
Dimension dimen = new Dimension();
Rect outRect = new Rect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(outRect);
System.out.println("top:"+outRect.top +" ; left: "+outRect.left) ;
dimen.mWidth = outRect.width() ;
dimen.mHeight = outRect.height();
return dimen;
}
private Dimension getAreaThree(Activity activity){
Dimension dimen = new Dimension();
// 用户绘制区域
Rect outRect = new Rect();
activity.getWindow().findViewById(Window.ID_ANDROID_CONTENT).getDrawingRect(outRect);
dimen.mWidth = outRect.width() ;
dimen.mHeight = outRect.height();
// end
return dimen;
}
[java] view
plaincopy
private class Dimension {
public int mWidth ;
public int mHeight ;
public Dimension(){}
}
转自:http://blog.csdn.net/xinhai657/article/details/16863679
晒代码前先了解一下Android屏幕区域的划分,如下图(该图引用自此文http://www.iteye.com/topic/828830 )
1、 屏幕区域的获取
[java] view
plaincopy
activity.getWindowManager().getDefaultDisplay();
2、应用区域的获取
[java] view
plaincopy
Rect outRect = new Rect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(outRect);
其中,outRect.top 即是状态栏高度。
3、view绘制区域获取
[java] view
plaincopy
Rect outRect = new Rect();
activity.getWindow().findViewById(Window.ID_ANDROID_CONTENT).getDrawingRect(outRect);
用绘制区域的outRect.top - 应用区域的outRect.top 即是标题栏的高度。
注意: 如果刚启动Activity时就要计算这些数据,最好在 onWindowFocusChanged 函数中进行, 否则得到的某些数据可能是错误的,比如,应用区域高宽的获取。
详细代码如下:
[java] view
plaincopy
public class ScreenSize extends Activity {
private TextView mScreenSizeView ;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_screen_size);
mScreenSizeView = (TextView) findViewById(R.id.screen_size);
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
if(hasFocus){
System.out.println("second");
StringBuilder sb = new StringBuilder();
Dimension dimen1 = getAreaOne(this);
Dimension dimen2 = getAreaTwo(this);
Dimension dimen3 = getAreaThree(this);
sb.append("Area one : \n\tWidth: "+dimen1.mWidth + ";\tHeight: "+dimen1.mHeight);
sb.append("\nArea two: \n\tWidth: "+dimen2.mWidth + ";\tHeight: "+dimen2.mHeight);
sb.append("\nArea three: \n\tWidth: "+dimen3.mWidth + ";\tHeight: "+dimen3.mHeight);
mScreenSizeView.setText(sb.toString());
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_screen_size, menu);
return true;
}
private Dimension getAreaOne(Activity activity){
Dimension dimen = new Dimension();
Display disp = activity.getWindowManager().getDefaultDisplay();
Point outP = new Point();
disp.getSize(outP);
dimen.mWidth = outP.x ;
dimen.mHeight = outP.y;
return dimen;
}
private Dimension getAreaTwo(Activity activity){
Dimension dimen = new Dimension();
Rect outRect = new Rect();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(outRect);
System.out.println("top:"+outRect.top +" ; left: "+outRect.left) ;
dimen.mWidth = outRect.width() ;
dimen.mHeight = outRect.height();
return dimen;
}
private Dimension getAreaThree(Activity activity){
Dimension dimen = new Dimension();
// 用户绘制区域
Rect outRect = new Rect();
activity.getWindow().findViewById(Window.ID_ANDROID_CONTENT).getDrawingRect(outRect);
dimen.mWidth = outRect.width() ;
dimen.mHeight = outRect.height();
// end
return dimen;
}
[java] view
plaincopy
private class Dimension {
public int mWidth ;
public int mHeight ;
public Dimension(){}
}
转自:http://blog.csdn.net/xinhai657/article/details/16863679
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