清除android应用程序用户数据_Android_Adb_User Data

清除android应用程序用户数据

android

清除android应用程序用户数据,android,adb,user-data,Android,Adb,User Data,使用adb外壳清除应用程序数据 adb shell pm clear com.android.browser 但当从应用程序执行该命令时 String deleteCmd = "pm clear com.android.browser"; Runtime runtime = Runtime.getRuntime(); try { runtime.exec(deleteCmd); } catch (IOExcep

使用adb外壳清除应用程序数据

adb shell pm clear com.android.browser

但当从应用程序执行该命令时

String deleteCmd = "pm clear com.android.browser";      
        Runtime runtime = Runtime.getRuntime();
        try {
            runtime.exec(deleteCmd);
        } catch (IOException e) {
            e.printStackTrace();                
        }

问题：

private static final String CHARSET_NAME = "UTF-8";
String cmd = "pm clear com.android.browser";

ProcessBuilder pb = new ProcessBuilder().redirectErrorStream(true).command("su");
Process p = pb.start();

// We must handle the result stream in another Thread first
StreamReader stdoutReader = new StreamReader(p.getInputStream(), CHARSET_NAME);
stdoutReader.start();

out = p.getOutputStream();
out.write((cmd + "\n").getBytes(CHARSET_NAME));
out.write(("exit" + "\n").getBytes(CHARSET_NAME));
out.flush();

p.waitFor();
String result = stdoutReader.getResult();

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.concurrent.CountDownLatch;

class StreamReader extends Thread {
    private InputStream is;
    private StringBuffer mBuffer;
    private String mCharset;
    private CountDownLatch mCountDownLatch;

    StreamReader(InputStream is, String charset) {
        this.is = is;
        mCharset = charset;
        mBuffer = new StringBuffer("");
        mCountDownLatch = new CountDownLatch(1);
    }

    String getResult() {
        try {
            mCountDownLatch.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return mBuffer.toString();
    }

    @Override
    public void run() {
        InputStreamReader isr = null;
        try {
            isr = new InputStreamReader(is, mCharset);
            int c = -1;
            while ((c = isr.read()) != -1) {
                mBuffer.append((char) c);
            }

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (isr != null)
                    isr.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            mCountDownLatch.countDown();
        }
    }
}

它没有清除用户数据，也没有给出任何异常，尽管我已经授予了以下权限

<uses-permission android:name="android.permission.CLEAR_APP_USER_DATA"/>

问题：

private static final String CHARSET_NAME = "UTF-8";
String cmd = "pm clear com.android.browser";

ProcessBuilder pb = new ProcessBuilder().redirectErrorStream(true).command("su");
Process p = pb.start();

// We must handle the result stream in another Thread first
StreamReader stdoutReader = new StreamReader(p.getInputStream(), CHARSET_NAME);
stdoutReader.start();

out = p.getOutputStream();
out.write((cmd + "\n").getBytes(CHARSET_NAME));
out.write(("exit" + "\n").getBytes(CHARSET_NAME));
out.flush();

p.waitFor();
String result = stdoutReader.getResult();

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.concurrent.CountDownLatch;

class StreamReader extends Thread {
    private InputStream is;
    private StringBuffer mBuffer;
    private String mCharset;
    private CountDownLatch mCountDownLatch;

    StreamReader(InputStream is, String charset) {
        this.is = is;
        mCharset = charset;
        mBuffer = new StringBuffer("");
        mCountDownLatch = new CountDownLatch(1);
    }

    String getResult() {
        try {
            mCountDownLatch.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return mBuffer.toString();
    }

    @Override
    public void run() {
        InputStreamReader isr = null;
        try {
            isr = new InputStreamReader(is, mCharset);
            int c = -1;
            while ((c = isr.read()) != -1) {
                mBuffer.append((char) c);
            }

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (isr != null)
                    isr.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            mCountDownLatch.countDown();
        }
    }
}

如何使用adb shell清除应用程序数据？

Afaik浏览器应用程序数据对于其他应用程序是不可清除的，因为它存储在

私有模式下。所以执行这个命令可能只能在根设备上工作。否则，您应该尝试另一种方法。
要清除应用程序数据，请尝试这种方法
    public void clearApplicationData() {
    File cache = getCacheDir();
    File appDir = new File(cache.getParent());
    if (appDir.exists()) {
        String[] children = appDir.list();
        for (String s : children) {
            if (!s.equals("lib")) {
                deleteDir(new File(appDir, s));Log.i("TAG", "**************** File /data/data/APP_PACKAGE/" + s + " DELETED *******************");
            }
        }
    }
}

public static boolean deleteDir(File dir) {
    if (dir != null &amp;&amp; dir.isDirectory()) {
        String[] children = dir.list();
        for (int i = 0; i < children.length; i++) {
            boolean success = deleteDir(new File(dir, children[i]));
            if (!success) {
                return false;
            }
        }
    }

    return dir.delete();
}

public void clearApplicationData（）{
文件缓存=getCacheDir（）；
File appDir=新文件（cache.getParent（））；
if（appDir.exists（））{
String[]children=appDir.list（）；
for（字符串s:子项）{
如果（！s.equals（“lib”））{
deleteDir（新文件（appDir，s））；Log.i（“TAG”，“*************************文件/data/data/APP_包/“+s+”已删除****************************”；
}
}
}
}
公共静态布尔deleteDir（文件目录）{
if（dir！=null&；dir.isDirectory（））{
String[]children=dir.list（）；
for（int i=0；i
如果您想手动执行此操作，还可以通过单击设置–>应用程序–>管理应用程序–>应用程序中的清除数据
按钮来清除用户数据
or Is there any other way to do that?

然后

命令pm clear com.android.browser
需要root权限。

因此，首先运行su

以下是示例代码：
private static final String CHARSET_NAME = "UTF-8";
String cmd = "pm clear com.android.browser";

ProcessBuilder pb = new ProcessBuilder().redirectErrorStream(true).command("su");
Process p = pb.start();

// We must handle the result stream in another Thread first
StreamReader stdoutReader = new StreamReader(p.getInputStream(), CHARSET_NAME);
stdoutReader.start();

out = p.getOutputStream();
out.write((cmd + "\n").getBytes(CHARSET_NAME));
out.write(("exit" + "\n").getBytes(CHARSET_NAME));
out.flush();

p.waitFor();
String result = stdoutReader.getResult();

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.concurrent.CountDownLatch;

class StreamReader extends Thread {
    private InputStream is;
    private StringBuffer mBuffer;
    private String mCharset;
    private CountDownLatch mCountDownLatch;

    StreamReader(InputStream is, String charset) {
        this.is = is;
        mCharset = charset;
        mBuffer = new StringBuffer("");
        mCountDownLatch = new CountDownLatch(1);
    }

    String getResult() {
        try {
            mCountDownLatch.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return mBuffer.toString();
    }

    @Override
    public void run() {
        InputStreamReader isr = null;
        try {
            isr = new InputStreamReader(is, mCharset);
            int c = -1;
            while ((c = isr.read()) != -1) {
                mBuffer.append((char) c);
            }

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (isr != null)
                    isr.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            mCountDownLatch.countDown();
        }
    }
}

类StreamReader
：
private static final String CHARSET_NAME = "UTF-8";
String cmd = "pm clear com.android.browser";

ProcessBuilder pb = new ProcessBuilder().redirectErrorStream(true).command("su");
Process p = pb.start();

// We must handle the result stream in another Thread first
StreamReader stdoutReader = new StreamReader(p.getInputStream(), CHARSET_NAME);
stdoutReader.start();

out = p.getOutputStream();
out.write((cmd + "\n").getBytes(CHARSET_NAME));
out.write(("exit" + "\n").getBytes(CHARSET_NAME));
out.flush();

p.waitFor();
String result = stdoutReader.getResult();

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.concurrent.CountDownLatch;

class StreamReader extends Thread {
    private InputStream is;
    private StringBuffer mBuffer;
    private String mCharset;
    private CountDownLatch mCountDownLatch;

    StreamReader(InputStream is, String charset) {
        this.is = is;
        mCharset = charset;
        mBuffer = new StringBuffer("");
        mCountDownLatch = new CountDownLatch(1);
    }

    String getResult() {
        try {
            mCountDownLatch.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return mBuffer.toString();
    }

    @Override
    public void run() {
        InputStreamReader isr = null;
        try {
            isr = new InputStreamReader(is, mCharset);
            int c = -1;
            while ((c = isr.read()) != -1) {
                mBuffer.append((char) c);
            }

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (isr != null)
                    isr.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            mCountDownLatch.countDown();
        }
    }
}

这个命令对我起了作用：
adb shell pm clear packageName

你好，UdayaLakmal
public class MyApplication extends Application {
    private static MyApplication instance;

    @Override
    public void onCreate() {
        super.onCreate();
        instance = this;
    }

    public static MyApplication getInstance(){
        return instance;
    }

    public void clearApplicationData() {
        File cache = getCacheDir();
        File appDir = new File(cache.getParent());
        if(appDir.exists()){
            String[] children = appDir.list();
            for(String s : children){
                if(!s.equals("lib")){
                    deleteDir(new File(appDir, s));
                    Log.i("TAG", "File /data/data/APP_PACKAGE/" + s +" DELETED");
                }
            }
        }
    }

    public static boolean deleteDir(File dir) {
        if (dir != null && dir.isDirectory()) {
            String[] children = dir.list();
            for (int i = 0; i < children.length; i++) {
                boolean success = deleteDir(new File(dir, children[i]));
                if (!success) {
                    return false;
                }
            }
        }

        return dir.delete();
    }
}

公共类MyApplication扩展应用程序{
私有静态应用实例；
@凌驾
public void onCreate（）{
super.onCreate（）；
实例=此；
}
公共静态MyApplication getInstance（）{
返回实例；
}
公共无效clearApplicationData（）{
文件缓存=getCacheDir（）；
File appDir=新文件（cache.getParent（））；
if（appDir.exists（））{
String[]children=appDir.list（）；
for（字符串s:子项）{
如果（！s.equals（“lib”））{
deleteDir（新文件（appDir，s））；
Log.i（“标签”，“文件/数据/数据/应用程序包/”+s+“删除”）；
}
}
}
}
公共静态布尔deleteDir（文件目录）{
if（dir！=null&&dir.isDirectory（））{
String[]children=dir.list（）；
for（int i=0；i

请检查一下，让我知道
您可以从下载代码以清除所有已安装应用的缓存：

使用adb外壳
进入设备外壳
运行以下命令：cmd package list packages | cut-d:“-f2”同时读取package；下午清除$package；完成
我尝试了这个，使用它可以清除我们自己的应用程序缓存数据，我需要从我们的应用程序中清除另一个应用程序用户数据application@UdayaLakmal您不能清除其他应用程序的缓存数据，因为android旨在保护应用程序免受其他应用程序的潜在恶意操作。命令行工具不适合应用程序使用。可能它们只适用于半特权的adb外壳用户，这在权限上被视为与用户在GUI中按下按钮（如果是系统设置应用程序）的权限相当。我想务实地这样做，你说的那个例子我已经试过了，但那不是我想要的。如果你试过那个，请分享你试过那个。好的，让我查另一种方法。。！！您是否找到了为外部应用程序清除数据的解决方案？请不要认为第三方应用程序应有权清除其他应用程序的用户数据。如果发生这种情况，那将是一片混乱。这将（如果使用适当的权限）删除外部存储上的共享文件，而不考虑应用程序关联。它不会删除任何应用程序的私有文件，这就是问题所在。是否也可以使用adb来清除缓存？@EduardoCuomo当然可以。我的意思是：是否也可以使用adb仅清除缓存？@Shayan您可以签出以下链接以仅删除应用程序缓存：我不确定此命令是否有效。对我有效，应接受回答Android 8.1 MiUi 10 Root我无法清除任何1个应用程序，即使使用带SU参数的adb SHELL