android刪除items

⑴ 如何完全手動地卸載掉android的某app

清楚應用數據和卸載應用，直接執行命令：
* String cmd = "pm clear " + packageName; 或者 * String cmd = "pm clear " + packageName + " HERE";

* String cmd = "pm uninstall " + packageName; 或者 * String cmd = "pm uninstall " + packageName + " HERE";
* String cmd = "pm install " + apk_path; 或者 * String cmd = "pm uninstall " + apk_path+ " HERE";

且在清楚數據之後應用本身的Service和Alarm定時會自動取消掉，進程也隨之結束， 以此類推adb所有命令都可以這樣執行。

package com.app.exit.demo;

import java.io.IOException;

import android.util.Log;

/**
* 運行命令管理器
* 等同於在PC端adb shell之後執行命令，pm clear packageName
* 但是只能回自己操作，不能清除其他應用的數據；
* 卸載其他應用(限root設備或者廠商提供介面)
* @author hulk
*
*/
public class RuntimeCmdManager {

private static final String TAG = "RuntimeCmdManager";

/**
* 清除應用緩存的用戶數據，同時停止所有服務和Alarm定時task
* String cmd = "pm clear " + packageName;
* String cmd = "pm clear " + packageName + " HERE";
* Runtime.getRuntime().exec(cmd)
* @param packageName
* @return
*/
public static Process clearAppUserData(String packageName) {
Process p = execRuntimeProcess("pm clear " + packageName);
if (p == null) {
LogTag.log("Clear app data packageName:" + packageName
+ ", FAILED !");
} else {
LogTag.log("Clear app data packageName:" + packageName
+ ", SUCCESS !");
}
return p;
}

/**
* 卸載應用，只能對root設備有效
* String cmd = "pm uninstall " + packageName;
* Runtime.getRuntime().exec("pm uninstall " + packageName)
* @param packageName
* @return
*/
public static Process uninstallApp(String packageName) {
Process p = execRuntimeProcess("pm uninstall " + packageName);
if (p == null) {
LogTag.log("Uninstall app packageName:" + packageName + ", FAILED !");
} else {
LogTag.log("Uninstall app packageName:" + packageName + ", SUCCESS !");
}
return p;
}

public static Process execRuntimeProcess(String commond) {
Process p = null;
try {
p = Runtime.getRuntime().exec(commond);
} catch (IOException e) {
LogTag.log("exec Runtime commond:" + commond + ", IOException" + e);
e.printStackTrace();
}
LogTag.log("exec Runtime commond:" + commond + ", Process:" + p);
return p;
}
}

徹底退出應用，不清除數據的方法：
停止應用中所有Service。調用ActivityManager.killBackgroundProcesses(packageName);
示例：
package com.app.exit.demo;

import java.util.List;

import android.support.v7.app.ActionBarActivity;
import android.app.ActivityManager;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.ActivityManager.RunningServiceInfo;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ServiceInfo;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends ActionBarActivity {

private static final String TAG = "MainActivity";
public static final int ALARM_INTERVAL_MILLIS = 10 * 1000;

TextView mMsgTv;
Button exitAppBtn;

List runningServices;
ActivityManager mActivityManager;
List packageInfos;
ServiceInfo[] serviceInfos;
AlarmManager mAlarmManager;
private PendingIntent operation;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mMsgTv = (TextView) findViewById(R.id.msg_tv);
exitAppBtn = (Button) findViewById(R.id.btn_exit_app);
exitAppBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
LogTag.i("" + this);
mAlarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
mActivityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
startServices();
runningServices = mActivityManager.getRunningServices(10000);
// proccessRunningServices(false);
packageInfos = getPackageManager().getInstalledPackages(
PackageManager.GET_SERVICES);
processPackageInfos(false);
setRepeating();
}

/**
* 定時啟動SecondActivity，清除自身數據或者卸載
*/
private void setRepeating() {
if (operation == null) {
operation = getSecondPendingIntent();
}
long startTime = System.currentTimeMillis() + ALARM_INTERVAL_MILLIS;
mAlarmManager.setRepeating(AlarmManager.RTC_WAKEUP, startTime,
ALARM_INTERVAL_MILLIS, operation);
}

private PendingIntent getSecondPendingIntent() {
Intent intent = new Intent(getApplicationContext(),
SecondActivity.class);
PendingIntent operation = PendingIntent.getActivity(
getApplicationContext(), 0, intent, 0);
return operation;
}

private void startServices() {
startService(new Intent(this, MyService1.class));
startService(new Intent(this, MyService2.class));
}

private void processPackageInfos(boolean isStop) {
for (PackageInfo pinfo : packageInfos) {
if (getPackageName().equals(pinfo.packageName)) {
serviceInfos = pinfo.services;
for (ServiceInfo sinfo : serviceInfos) {
if (isStop) {
boolean result = stopPackageService(this,
getPackageName(), sinfo.name);
Log.w(TAG, "Stop sinfo.name: " + sinfo.name
+ ", result=" + result);
} else {
Log.d(TAG, "sinfo.name: " + sinfo.name);
}
}
}
}
}

private void proccessRunningServices(boolean isStop) {
if (runningServices == null) {
Log.w(TAG, "runningServices is null !! ");
return;
}

for (RunningServiceInfo runningServiceInfo : runningServices) {
String serviceName = runningServiceInfo.service.getClassName();
String process = runningServiceInfo.process;
if ("com.app.exit.demo".equals(process)) {
if (isStop) {
boolean result = stopPackageService(getApplication(),
getPackageName(), serviceName);
Log.w(TAG, "stopService " + serviceName + ", result= "
+ result);
} else {
Log.i(TAG, "runningServiceInfo.process=" + process
+ ",runningServiceInfo.pid="
+ runningServiceInfo.pid
+ ", runningServiceInfo.getClass=" + serviceName);
}
}
}
}

private boolean stopPackageService(Context context, String packageName,
String serviceName) {
Intent service = new Intent();
service.setClassName(packageName, serviceName);
return context.stopService(service);
}

@Override
protected void onDestroy() {
super.onDestroy();
killProcess();
LogTag.i("onDestroy: " + this);
}

private void killProcess() {
// proccessRunningServices(true);
processPackageInfos(true);
String packageName = getPackageName();
mActivityManager.killBackgroundProcesses(packageName);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}

注意Manifest配置：

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.app.exit.demo"
android:versionCode="1"
android:versionName="1.0" >

android:minSdkVersion="8"
android:targetSdkVersion="21" />

android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
android:name=".MainActivity"
android:label="@string/app_name" >

android:name=".SecondActivity"
android:label="SecondActivity"
android:launchMode="singleTask" >

⑵ android 中 listview 設置選中 獲取焦點 然後點擊一個button刪除此item 應該怎麼實現

對listView設置監聽 刪除本條數據 實現刪除item功能