问题：在做安卓随机压力测试时，被测APP经常跑出去，被别的app挡住，此时很可能出现断网，截图也截取了别的应用图，比较影响压力测试。
如何解决上面的问题呢？思路可以有如下几种：一，测试执行时，不断采用adb 命令，启动app二，开发一个app，持续不断调起被测app，通过包名启动它开发工具：android studio用处：1.通过包名启动其它app；2.自动化测试时，有时候需要保证被测APP处于活动状态，而不是在后台。代码如下：
package com.ming.t;import android.app.ActivityManager;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;import java.util.List;//login.java主要就是实现login界面的功能public class login extends AppCompatActivity { private Button TopApp; public static Context mContext; EditText appPackage; String appPackageText; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_login); appPackage=(EditText)super.findViewById(R.id.appPackage);//获取用户输入的包名 TopApp=(Button)findViewById(R.id.TopApp); TopApp.setOnClickListener(new View.OnClickListener()//侦听登录点击事件 { public void onClick(View v) { appPackageText = appPackage.getText().toString(); if(appPackageText == null || appPackageText.equals("")) { Toast.makeText(getApplicationContext(), "包名必须填写", Toast.LENGTH_SHORT).show();//提示包名必须填写 }else{ int x = 1; while( x < 3600 ) { System.out.print("value of x : " + x ); x++; try { Thread.sleep(1000);//休眠1秒 } catch (InterruptedException e) { e.printStackTrace(); } openAppWithPackageName(appPackage.getText().toString()); System.out.print("\n"); } } } } ); } private void openAppWithPackageName(String packagename) { // 通过包名获取此APP详细信息，包括Activities、services、versioncode、name等等 PackageInfo packageinfo = null; try { packageinfo = getPackageManager().getPackageInfo(packagename, 0); } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } if (packageinfo == null) { return; } // 创建一个类别为CATEGORY_LAUNCHER的该包名的Intent Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null); resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER); resolveIntent.setPackage(packageinfo.packageName); // 通过getPackageManager()的queryIntentActivities方法遍历 List resolveinfoList = getPackageManager() .queryIntentActivities(resolveIntent, 0); if (!resolveinfoList.iterator().hasNext()){ return ; } ResolveInfo resolveinfo = resolveinfoList.iterator().next(); if (resolveinfo != null) { // packagename = 参数packname String packageName = resolveinfo.activityInfo.packageName; // 这个就是我们要找的该APP的LAUNCHER的Activity[组织形式：packagename.mainActivityname] String className = resolveinfo.activityInfo.name; // LAUNCHER Intent Intent intent = new Intent(Intent.ACTION_MAIN); intent.addCategory(Intent.CATEGORY_LAUNCHER); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);//重点是加这个 // 设置ComponentName参数1:packagename参数2:MainActivity路径 ComponentName cn = new ComponentName(packageName, className); intent.setComponent(cn); //startActivity(intent); mContext = getBaseContext(); mContext.startActivity(intent); } }} 页面布局文件如下：
完成后，app界面如下：
