Android获得屏幕分辨率的两种方法
16lz
2021-01-23
package com.wufen.allapp;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;import android.util.DisplayMetrics;import android.view.Display;import android.view.Menu;import android.view.WindowManager;import android.widget.TextView;import java.util.List;public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final PackageManager packageManager = this.getPackageManager(); final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); // mainIntent.setPackage(packageName); final List apps = packageManager.queryIntentActivities(mainIntent, 0); // 方法1 Android获得屏幕的宽和高 WindowManager windowManager = getWindowManager(); Display display = windowManager.getDefaultDisplay(); int screenWidth = screenWidth = display.getWidth(); int screenHeight = screenHeight = display.getHeight(); // 方法2 DisplayMetrics dm = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(dm); TextView tv = (TextView)this.findViewById(R.id.tv); float width=dm.widthPixels*dm.density; float height=dm.heightPixels*dm.density; tv.setText("First method:"+dm.toString()+"\n"+"Second method:"+"Y="+screenWidth+";X="+screenHeight); //dm.widthPixels,dm.heightPixels }} 更多相关文章
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