项目需求:在app中点击重启测试按钮后开始反复重启设备,且每次重启后会弹出提示框三秒,用户可点击提示框的确认按钮停止测试.
需求拆分:1.点击按钮重启设备
2.监听开机广播
3.记录重启次数
4.弹出提示框
先说第一点,在代码中重启设备
本项目中应用的设备已经是root过的(连接电脑,adb shell后直接是管理员权限),所以最简单的办法是通过命令控制设备重启,代码如下:
case R.id.rebootTest:
// 创建退出对话框
AlertDialog.Builder isSure = new Builder(this);
// 设置对话框标题
isSure.setTitle("警告");
// 设置对话框消息
isSure.setMessage("是否确定进行重启测试?");
// 添加选择按钮并注册监听
isSure.setPositiveButton("确定", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
myLog("点击确定,开始重启测试");
SharedPreferences share = getSharedPreferences("rebootCountConfig", MODE_PRIVATE);
Editor editor = share.edit();
editor.putInt("rebootCount", 1);
editor.putBoolean("StartRebootFlag", true);
editor.commit();
startRebootTest();
// finish();
}
});
isSure.setNegativeButton("取消", new android.content.DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
// finish();
}
});
// 对话框显示
isSure.create().show();
break;重启这么敏感的操作,肯定要弹出提示框确认再进行的,真正重启设备的代码在这儿:
protected void startRebootTest() {
// TODO Auto-generated method stub
myLog("进入startRebootTest方法");
String cmd = "reboot";//或者"su reboot"
try {
// 发送请求
Runtime.getRuntime().exec(cmd);
} catch (IOException e) {
Log.d("zdd", "你的手机未root，无法实现该功能！");
}
}再说第二点,监听开机广播
创建一个BroadcastReceiver文件,在Manifest.xml中静态注册广播,代码如下:
<receiver
android:name="selfTest.MyBootCompleteReceiver"
android:enabled="true"
android:exported="true" >
<intent-filter android:priority="1000" >
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>添加权限:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />在BroadcastReceiver文件代码如下:
public class MyBootCompleteReceiver extends BroadcastReceiver {
public final static int REBOOT_TOTAL_NUM = 999;
public MyBootCompleteReceiver() {
}
@Override
public void onReceive(final Context context, Intent intent) {
// TODO: This method is called when the BroadcastReceiver is receiving
mylog(intent.getAction());
}
private void mylog(String str) {
Log.d("zdd", "MyBootComplete=>"+str);
}
}一步一步的验证,功能OK了再进行下一步.这里看Logcat中有监听到开机广播的打印信息就说明功能OK.
下一步,记录重启次数
使用SharedPreference存取记录重启次数的变量.
@Override
public void onReceive(final Context context, Intent intent) {
// TODO: This method is called when the BroadcastReceiver is receiving
mylog(intent.getAction());
SharedPreferences shared = context.getSharedPreferences("rebootCountConfig", Context.MODE_PRIVATE);
int rebootCount = shared.getInt("rebootCount", 0);
boolean startRebootTestFlag = shared.getBoolean("StartRebootFlag", false);
mylog("rebootCount="+String.valueOf(rebootCount));
if (rebootCount==0) {
}else if (rebootCount<REBOOT_TOTAL_NUM) {
if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {//进入显示弹框的Activity
Intent BootBroadcastIntent = new Intent(context, IsRebootTestContinueActivity.class);
BootBroadcastIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(BootBroadcastIntent);
}
}else {//达到最大重启次数
Intent BootBroadcastIntent = new Intent(context, MainMenu.class);
BootBroadcastIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(BootBroadcastIntent);
}
}开始我是想直接在BroadcastReceiver中弹出对话框的,通过添加系统权限:
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />在创建对话框时添加一句:
dialog.getWindow()
.setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
dialog.show();也可以做到,但是效果几乎是一闪而逝,太考验手速和反应速度了.因此我跳转到一个Activity中专门用来显示弹出提示对话框,想延时几秒都可以.即弹出提示框
public class IsRebootTestContinueActivity extends BaseActivity {
AlertDialog dialog;
Context mContext;
TimerTask task;
Timer timer;
public static final int REBOOT_TOTAL_NUM = 999;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_is_reboot_test_continue);
mContext = this;
AlertDialog.Builder isSure = new Builder(this);
// 设置对话框标题
isSure.setTitle("警告");
// 设置对话框消息
isSure.setMessage("是否确定停止重启测试?");
// 添加选择按钮并注册监听
isSure.setPositiveButton("确定", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
//dialog.dismiss();
Intent intent = new Intent(IsRebootTestContinueActivity.this, MainMenu.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
finish();
}
});
// 对话框显示
dialog = isSure.create();
dialog.getWindow()
.setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
dialog.show();
task = new TimerTask() {
@Override
public void run() {
dialog.dismiss();
SharedPreferences shared = getSharedPreferences("rebootCountConfig", Context.MODE_PRIVATE);
int rebootCount = shared.getInt("rebootCount", 0);
boolean startRebootTestFlag = shared.getBoolean("StartRebootFlag", false);
myLog("rebootCount="+String.valueOf(rebootCount));
if (rebootCount==0) {
}else if (rebootCount<REBOOT_TOTAL_NUM) {
SharedPreferences share = getSharedPreferences("rebootCountConfig", MODE_PRIVATE);
Editor editor = share.edit();
editor.putInt("rebootCount", ++rebootCount);
editor.commit();
String cmd = "reboot";
try {
// 发送请求
Runtime.getRuntime().exec(cmd);
} catch (IOException e) {
myLog("你的手机未root，无法实现该功能！");
}
}else {
myLog(String.valueOf(rebootCount)+"次重启测试结束,启动app");
Intent BootBroadcastIntent = new Intent(IsRebootTestContinueActivity.this, MainMenu.class);
BootBroadcastIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(BootBroadcastIntent);
}
finish();
}
};
timer = new Timer();
timer.schedule(task, 3000);//3秒后执行TimeTask的run方法
}
@Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
if (task!=null) {
task.cancel();
}
if (timer!=null) {
timer.cancel();
}
}这样就大功告成了.
在实际测试时还遇到个问题,重启N次后接收不到开机广播,因此不再重启,我修改了以下广播的接收优先级,现在在测试效果.