android获取手机屏幕分辨率

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

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/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" ><TextViewandroid:id="@+id/display_metrics_tv"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentTop="true"android:text="@string/display_metrics"/><Buttonandroid: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"/></RelativeLayout>

2.strings.xml

<?xml version="1.0" encoding="utf-8"?><resources><string name="app_name">DisplayMetricsDemo</string><string name="display_metrics">显示屏幕分辨率:</string><string name="action_settings">Settings</string><string name="metrics">获取屏幕分辨率</string></resources>

3.MainActivity.java

private TextView displayMetricsTv;private Button metricsBtn;private DisplayMetrics displayMetrics;@Overrideprotected 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(){@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubdisplayMetrics = new DisplayMetrics();getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);displayMetricsTv.setText("显示屏幕分辨率:\r\n" + displayMetrics.widthPixels + " * " + displayMetrics.heightPixels);}});}