本文主要解决获取手机屏幕的大小：例子很简单，主要通过 DisplayMetrics 类来获取相关的信息,代码如下
效果图：
XML文件
1. activity_main.xml
xmlns:tools="/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.displaymetricsdemo.MainActivity$PlaceholderFragment" >
android:id="@+id/display_metrics_tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:text="@string/display_metrics"
/>
android:id="@+id/metrics_btn"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/display_metrics_tv"
android:text="@string/metrics"
/>
2.strings.xml
DisplayMetricsDemo
显示屏幕分辨率:
Settings
获取屏幕分辨率
3.MainActivity.java
private TextView displayMetricsTv;
private Button metricsBtn;
private DisplayMetrics displayMetrics;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
displayMetricsTv = (TextView) this.findViewById(R.id.display_metrics_tv);
metricsBtn = (Button) this.findViewById(R.id.metrics_btn);
metricsBtn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
displayMetricsTv.setText("显示屏幕分辨率:\r\n" + displayMetrics.widthPixels + " * " + displayMetrics.heightPixels);
}
});
}
