本文主要介绍程序如何利用root权限静默安装APK,如何自动选择普通安装还是静默安装以及扩展PackageUtils实现静默删除APK。
1、root权限静默安装调用
直接调用PackageUtils.installSlient函数(直接引入TrineaAndroidCommon@GoogleCode或TrineaAndroidCommon@Github作为你项目的library),系统授权管理会弹出对话框让用户选择是否允许应用获得root权限。允许的话即可静默安装。
该函数返回PackageUtils.INSTALL_SUCCEEDED表示安装成功,失败则返回相应错误码,可以得到失败的详细原因,包括文件不存在,apk无效,系统内存不足,签名不正确,缺少公共库,share user错误等等判断。
注意对于较大apk安装过程非常耗时,所以最好新启线程去调用PackageUtils.installSlient。
2、root权限静默安装实现
PackageUtils.installSlient的实现实际使用的是su pm install -r filePath命令。核心代码如下:
PackageUtils.installSlient的实现代码
Java
public static final String COMMAND_SU = "su";
public static final String COMMAND_SH = "sh";
public static final String COMMAND_EXIT = "exit\n";
public static final String COMMAND_LINE_END = "\n";
public static CommandResult execCommand(String[] commands, boolean isRoot, boolean isNeedResultMsg) {
int result = -1;
if (commands == null || commands.length == 0) {
return new CommandResult(result, null, null);
}
Process process = null;
BufferedReader successResult = null;
BufferedReader errorResult = null;
StringBuilder successMsg = null;
StringBuilder errorMsg = null;
DataOutputStream os = null;
try {
process = Runtime.getRuntime().exec(isRoot ? COMMAND_SU : COMMAND_SH);
os = new DataOutputStream(process.getOutputStream());
for (String command : commands) {
if (command == null) {
continue;
}
// donnot use os.writeBytes(commmand), avoid chinese charset error
os.write(command.getBytes());
os.writeBytes(COMMAND_LINE_END);
os.flush();
}
os.writeBytes(COMMAND_EXIT);
os.flush();
result = process.waitFor();
// get command result
if (isNeedResultMsg) {
successMsg = new StringBuilder();
errorMsg = new StringBuilder();
successResult = new BufferedReader(new InputStreamReader(process.getInputStream()));
errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream()));
String s;
while ((s = successResult.readLine()) != null) {
successMsg.append(s);
}
while ((s = errorResult.readLine()) != null) {
errorMsg.append(s);
}
}
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (os != null) {
os.close();
}
if (successResult != null) {
successResult.close();
}
if (errorResult != null) {
errorResult.close();
}
} catch (IOException e) {
e.printStackTrace();
}
if (process != null) {
process.destroy();
}
}
return new CommandResult(result, successMsg == null ? null : successMsg.toString(), errorMsg == null ? null
: errorMsg.toString());
}
public static final String COMMAND_SU = "su";
public static final String COMMAND_SH = "sh";
public static final String COMMAND_EXIT = "exit\n";
public static final String COMMAND_LINE_END = "\n";
public static CommandResult execCommand(String[] commands, boolean isRoot, boolean isNeedResultMsg) {
int result = -1;
if (commands == null || commands.length == 0) {
return new CommandResult(result, null, null);
}
Process process = null;
BufferedReader successResult = null;
BufferedReader errorResult = null;
StringBuilder successMsg = null;
StringBuilder errorMsg = null;
DataOutputStream os = null;
try {
process = Runtime.getRuntime().exec(isRoot ? COMMAND_SU : COMMAND_SH);
os = new DataOutputStream(process.getOutputStream());
for (String command : commands) {
if (command == null) {
continue;
}
// donnot use os.writeBytes(commmand), avoid chinese charset error
os.write(command.getBytes());
os.writeBytes(COMMAND_LINE_END);
os.flush();
}
os.writeBytes(COMMAND_EXIT);
os.flush();
result = process.waitFor();
// get command result
if (isNeedResultMsg) {
successMsg = new StringBuilder();
errorMsg = new StringBuilder();
successResult = new BufferedReader(new InputStreamReader(process.getInputStream()));
errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream()));
String s;
while ((s = successResult.readLine()) != null) {
successMsg.append(s);
}
while ((s = errorResult.readLine()) != null) {
errorMsg.append(s);
}
}
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (os != null) {
os.close();
}
if (successResult != null) {
successResult.close();
}
if (errorResult != null) {
errorResult.close();
}
} catch (IOException e) {
e.printStackTrace();
}
if (process != null) {
process.destroy();
}
}
return new CommandResult(result, successMsg == null ? null : successMsg.toString(), errorMsg == null ? null
: errorMsg.toString());
3、普通安装,系统权限静默安装,root权限静默安装的自动选择
查看PackageUtils源码会发现我还提供了其他几个安装函数,其中PackageUtils.install函数会根据是否是系统应用以及是否拥有root权限,从而确定调用哪种安装方式(普通安装方式、root静默安装方式还是系统权限静默安装),源码如下:
Java
/**
* install according conditions
*
*
if system application or rooted, see {@link #installSilent(Context, String)}
*
else see {@link #installNormal(Context, String)}
*
*
* @param context
* @param filePath
* @return
*/
public static final int install(Context context, String filePath) {
if (!PackageUtils.isSystemApplication(context)) {
boolean isRoot = ShellUtils.checkRootPermission();
if (!isRoot) {
return installNormal(context, filePath) ? INSTALL_SUCCEEDED : INSTALL_FAILED_INVALID_URI;
}
}
return installSilent(context, filePath);
}
/**
* install according conditions
*
*
if system application or rooted, see {@link #installSilent(Context, String)}
*
else see {@link #installNormal(Context, String)}
*
*
* @param context
* @param filePath
* @return
*/
public static final int install(Context context, String filePath) {
if (!PackageUtils.isSystemApplication(context)) {
boolean isRoot = ShellUtils.checkRootPermission();
if (!isRoot) {
return installNormal(context, filePath) ? INSTALL_SUCCEEDED : INSTALL_FAILED_INVALID_URI;
}
}
return installSilent(context, filePath);
}
如果是系统应用记得添加权限,从而走普通安装方式,不用申请root权限进行静默安装。
4、扩展PackageUtils 实现静默卸载应用
没有时间实现静默卸载应用的代码,不过原理都一样,请参考PackageUtils.installSlient编写root权限静默删除应用代码。使用pm uninstall [-k] PACKAGE命令即可。
1、root权限静默安装调用
直接调用PackageUtils.installSlient函数(直接引入TrineaAndroidCommon@GoogleCode或TrineaAndroidCommon@Github作为你项目的library),系统授权管理会弹出对话框让用户选择是否允许应用获得root权限。允许的话即可静默安装。
该函数返回PackageUtils.INSTALL_SUCCEEDED表示安装成功,失败则返回相应错误码,可以得到失败的详细原因,包括文件不存在,apk无效,系统内存不足,签名不正确,缺少公共库,share user错误等等判断。
注意对于较大apk安装过程非常耗时,所以最好新启线程去调用PackageUtils.installSlient。
2、root权限静默安装实现
PackageUtils.installSlient的实现实际使用的是su pm install -r filePath命令。核心代码如下:
PackageUtils.installSlient的实现代码
Java
public static final String COMMAND_SU = "su";
public static final String COMMAND_SH = "sh";
public static final String COMMAND_EXIT = "exit\n";
public static final String COMMAND_LINE_END = "\n";
public static CommandResult execCommand(String[] commands, boolean isRoot, boolean isNeedResultMsg) {
int result = -1;
if (commands == null || commands.length == 0) {
return new CommandResult(result, null, null);
}
Process process = null;
BufferedReader successResult = null;
BufferedReader errorResult = null;
StringBuilder successMsg = null;
StringBuilder errorMsg = null;
DataOutputStream os = null;
try {
process = Runtime.getRuntime().exec(isRoot ? COMMAND_SU : COMMAND_SH);
os = new DataOutputStream(process.getOutputStream());
for (String command : commands) {
if (command == null) {
continue;
}
// donnot use os.writeBytes(commmand), avoid chinese charset error
os.write(command.getBytes());
os.writeBytes(COMMAND_LINE_END);
os.flush();
}
os.writeBytes(COMMAND_EXIT);
os.flush();
result = process.waitFor();
// get command result
if (isNeedResultMsg) {
successMsg = new StringBuilder();
errorMsg = new StringBuilder();
successResult = new BufferedReader(new InputStreamReader(process.getInputStream()));
errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream()));
String s;
while ((s = successResult.readLine()) != null) {
successMsg.append(s);
}
while ((s = errorResult.readLine()) != null) {
errorMsg.append(s);
}
}
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (os != null) {
os.close();
}
if (successResult != null) {
successResult.close();
}
if (errorResult != null) {
errorResult.close();
}
} catch (IOException e) {
e.printStackTrace();
}
if (process != null) {
process.destroy();
}
}
return new CommandResult(result, successMsg == null ? null : successMsg.toString(), errorMsg == null ? null
: errorMsg.toString());
}
public static final String COMMAND_SU = "su";
public static final String COMMAND_SH = "sh";
public static final String COMMAND_EXIT = "exit\n";
public static final String COMMAND_LINE_END = "\n";
public static CommandResult execCommand(String[] commands, boolean isRoot, boolean isNeedResultMsg) {
int result = -1;
if (commands == null || commands.length == 0) {
return new CommandResult(result, null, null);
}
Process process = null;
BufferedReader successResult = null;
BufferedReader errorResult = null;
StringBuilder successMsg = null;
StringBuilder errorMsg = null;
DataOutputStream os = null;
try {
process = Runtime.getRuntime().exec(isRoot ? COMMAND_SU : COMMAND_SH);
os = new DataOutputStream(process.getOutputStream());
for (String command : commands) {
if (command == null) {
continue;
}
// donnot use os.writeBytes(commmand), avoid chinese charset error
os.write(command.getBytes());
os.writeBytes(COMMAND_LINE_END);
os.flush();
}
os.writeBytes(COMMAND_EXIT);
os.flush();
result = process.waitFor();
// get command result
if (isNeedResultMsg) {
successMsg = new StringBuilder();
errorMsg = new StringBuilder();
successResult = new BufferedReader(new InputStreamReader(process.getInputStream()));
errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream()));
String s;
while ((s = successResult.readLine()) != null) {
successMsg.append(s);
}
while ((s = errorResult.readLine()) != null) {
errorMsg.append(s);
}
}
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (os != null) {
os.close();
}
if (successResult != null) {
successResult.close();
}
if (errorResult != null) {
errorResult.close();
}
} catch (IOException e) {
e.printStackTrace();
}
if (process != null) {
process.destroy();
}
}
return new CommandResult(result, successMsg == null ? null : successMsg.toString(), errorMsg == null ? null
: errorMsg.toString());
}
3、普通安装,系统权限静默安装,root权限静默安装的自动选择
查看PackageUtils源码会发现我还提供了其他几个安装函数,其中PackageUtils.install函数会根据是否是系统应用以及是否拥有root权限,从而确定调用哪种安装方式(普通安装方式、root静默安装方式还是系统权限静默安装),源码如下:
Java
/**
* install according conditions
*
*
if system application or rooted, see {@link #installSilent(Context, String)}
*
else see {@link #installNormal(Context, String)}
*
*
* @param context
* @param filePath
* @return
*/
public static final int install(Context context, String filePath) {
if (!PackageUtils.isSystemApplication(context)) {
boolean isRoot = ShellUtils.checkRootPermission();
if (!isRoot) {
return installNormal(context, filePath) ? INSTALL_SUCCEEDED : INSTALL_FAILED_INVALID_URI;
}
}
return installSilent(context, filePath);
}
/**
* install according conditions
*
*
if system application or rooted, see {@link #installSilent(Context, String)}
*
else see {@link #installNormal(Context, String)}
*
*
* @param context
* @param filePath
* @return
*/
public static final int install(Context context, String filePath) {
if (!PackageUtils.isSystemApplication(context)) {
boolean isRoot = ShellUtils.checkRootPermission();
if (!isRoot) {
return installNormal(context, filePath) ? INSTALL_SUCCEEDED : INSTALL_FAILED_INVALID_URI;
}
}
return installSilent(context, filePath);
}
如果是系统应用记得添加权限,从而走普通安装方式,不用申请root权限进行静默安装。
4、扩展PackageUtils 实现静默卸载应用
没有时间实现静默卸载应用的代码,不过原理都一样,请参考PackageUtils.installSlient编写root权限静默删除应用代码。使用pm uninstall [-k] PACKAGE命令即可。