Android编程基础之获取手机屏幕大小(DisplayMetrics应用)示例

<string name="resolution">手机分辨率为:</string>
<string name="pressme">按我获分辨率</string>

<?xml version="1.0" encoding="utf-8"?>
<resources>
  <string name="hello">Hello World, DisplayMetricsDemo!</string>
  <string name="app_name">DisplayMetricsDemo</string>
  <string name="resolution">手机分辨率为:</string>
  <string name="pressme">按我获分辨率</string>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
<TextView
  android:id="@+id/textview1"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:text="@string/resolution"
  />
<Button
  android:id="@+id/button1"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="@string/pressme"
/>
</LinearLayout>

package com.android.test;
import android.app.Activity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class DisplayMetricsDemo extends Activity {
  private TextView textview1;
  private Button button1;
  //获取手机屏幕分辨率的类
  private DisplayMetrics dm;
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    //获取布局中TextView,Button对像
    textview1 = (TextView)findViewById(R.id.textview1);
    button1 = (Button)findViewById(R.id.button1);
    //增加button事件响应
    button1.setOnClickListener(new Button.OnClickListener(){
      public void onClick(View v)
      {
        dm = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(dm);
        //获得手机的宽带和高度像素单位为px
        String str = "手机屏幕分辨率为:" + dm.widthPixels
        +" * "+dm.heightPixels;
        textview1.setText(str);
      }
    });
  }
}