Android常用代码之普通及系统权限静默安装APK

http://www.trinea.cn/android/android-install-silent/

本文主要介绍程序如何安装apk，包括普通模式安装和系统权限静默安装。

如果是非系统应用请直接查看：Android常用代码之APK root权限静默安装，查看更完美的解决方案。

1、普通模式安装，调用系统Intent，代码如下：

Java

public static void install(Context context, String filePath) {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setDataAndType(Uri.parse("file://" + filePath), "application/vnd.android.package-archive");
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}

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public static void install(Context context, String filePath) { Intent i = new Intent(Intent.ACTION_VIEW); i.setDataAndType(Uri.parse("file://" + filePath), "application/vnd.android.package-archive"); i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(i); }

2、[b]静默安装[/b]

如果是非系统应用请移步：Android常用代码之APK root权限静默安装，查看更完美的解决方案。

分为如下三步

(1)、静默安装需要系统应用安装权限，需要在AndroidManifest.xml中添加

Java

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

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

(2)、实现代码

静默安装代码如下，实际是通过pm install -r 命令安装。

注意：该函数最好在新建的线程中运行并通过handler发送安装结果给主线程，否则安装时间较长会导致ANR。

静默安装实现

Java

/**
* install slient
*
* @param context
* @param filePath
* @return 0 means normal, 1 means file not exist, 2 means other exception error
*/
public static int installSlient(Context context, String filePath) {
File file = new File(filePath);
if (filePath == null || filePath.length() == 0 || (file = new File(filePath)) == null || file.length() <= 0
|| !file.exists() || !file.isFile()) {
return 1;
}

String[] args = { "pm", "install", "-r", filePath };
ProcessBuilder processBuilder = new ProcessBuilder(args);

Process process = null;
BufferedReader successResult = null;
BufferedReader errorResult = null;
StringBuilder successMsg = new StringBuilder();
StringBuilder errorMsg = new StringBuilder();
int result;
try {
process = processBuilder.start();
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();
result = 2;
} catch (Exception e) {
e.printStackTrace();
result = 2;
} finally {
try {
if (successResult != null) {
successResult.close();
}
if (errorResult != null) {
errorResult.close();
}
} catch (IOException e) {
e.printStackTrace();
}
if (process != null) {
process.destroy();
}
}

// TODO should add memory is not enough here
if (successMsg.toString().contains("Success") || successMsg.toString().contains("success")) {
result = 0;
} else {
result = 2;
}
Log.d("installSlient", "successMsg:" + successMsg + ", ErrorMsg:" + errorMsg);
return result;
}

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/** * install slient * * @param context * @param filePath * @return 0 means normal, 1 means file not exist, 2 means other exception error */ public static int installSlient(Context context, String filePath) { File file = new File(filePath); if (filePath == null || filePath.length() == 0 || (file = new File(filePath)) == null || file.length() <= 0 || !file.exists() || !file.isFile()) { return 1; } String[] args = { "pm", "install", "-r", filePath }; ProcessBuilder processBuilder = new ProcessBuilder(args); Process process = null; BufferedReader successResult = null; BufferedReader errorResult = null; StringBuilder successMsg = new StringBuilder(); StringBuilder errorMsg = new StringBuilder(); int result; try { process = processBuilder.start(); 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(); result = 2; } catch (Exception e) { e.printStackTrace(); result = 2; } finally { try { if (successResult != null) { successResult.close(); } if (errorResult != null) { errorResult.close(); } } catch (IOException e) { e.printStackTrace(); } if (process != null) { process.destroy(); } } // TODO should add memory is not enough here if (successMsg.toString().contains("Success") || successMsg.toString().contains("success")) { result = 0; } else { result = 2; } Log.d("installSlient", "successMsg:" + successMsg + ", ErrorMsg:" + errorMsg); return result; }

返回值0表示安装成功，1表示文件不存在，2表示其他错误。需要更丰富的安装失败信息(内存不足、解析包出错)可直接使用PackageUtils.installSlient。

(3) 、获取系统权限

完成了上面两步后，普通方式安装我们的应用仍然无法静默安装。需要我们的应用获得系统权限，编译应用并通过

adb push <your_apk_path> /system/app/

命令实现安装，即可拥有系统权限。