使用 adb shell 命令可以清除应用数据。
adb shell pm clear com.android.browser
但是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：
尽管我已经授予以下权限，但它并未清除用户数据也没有引发任何异常。
<uses-permission android:name="android.permission.CLEAR_APP_USER_DATA"/>
问题：
如何使用adb shell清除另一个应用程序的数据？
这个命令对我起作用了：
adb shell pm clear packageName
命令pm clear com.android.browser需要root权限。
因此，请先运行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();
StreamReader 类：
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();
}
}
}
adb shell pm clear com.example.healitia
adb shell进入设备shell..cmd package list packages|cut -d":" -f2|while read package ;do pm clear $package;done 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();
}
adb shell进入adb shellpm list packages检查可用软件包pm list packages结果中显示相同的名称来运行pm clear packageName。如果软件包名称未显示，并且您尝试进行重置，则会收到失败状态。
// To delete all the folders and files within folders recursively
File sdDir = new File(sdPath);
if(sdDir.exists())
deleteRecursive(sdDir);
// Delete any folder on a device if exists
void deleteRecursive(File fileOrDirectory) {
if (fileOrDirectory.isDirectory())
for (File child : fileOrDirectory.listFiles())
deleteRecursive(child);
fileOrDirectory.delete();
}