Android 如何靜默安裝app

1. 有提示的安裝（所有第三方應用都可以）

intent intent = new intent(intent.action_view);

intent.addflags(intent.flag_activity_new_task);
mcontext.startactivity(intent);
2. 靜默安裝：利用processbuilder
/**

* install slient
** @param filepath
* @return 0 means normal, 1 means file not exist, 2 means other exception error
*/public static int installsilent(string filepath) 
string args = ;
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 
while ((s = errorresult.readline()) != null) 
} catch (ioexception e)  catch (exception e)  finally 
if (errorresult != null) 
} catch (ioexception e) 
if (process != null) 
}// todo should add memory is not enough here
if (successmsg.tostring().contains("success") || successmsg.tostring().contains("success"))  else 
log.d("test-test", "successmsg:" + successmsg + ", errormsg:" + errormsg);
return result;
}

private static final string tag = "test-test";

private static final int time_out = 60 * 1000;
private static string sh_path = ;
public static boolean executeinstallcommand(string filepath) 
successresult = new bufferedreader(new inputstreamreader(process.getinputstream()));
errorresult = new bufferedreader(new inputstreamreader(process.geterrorstream()));
os = new dataoutputstream(process.getoutputstream());
os.writebytes(command + "\n");
os.writebytes("echo \"rc:\" $?\n");
os.writebytes("exit\n");
os.flush();
string s;
while ((s = successresult.readline()) != null) 
while ((s = errorresult.readline()) != null) 
// handle a requested timeout, or just use waitfor() otherwise.
if (time_out > 0) 
if (system.currenttimemillis() > finish) 
}} else 
// in order to consider this a success, we require to things: a) a proper exit value, and ...
if (process.exitvalue() != 0) 
return true;
} catch (filenotfoundexception e)  catch (ioexception e)  catch (interruptedexception e)  finally  catch (ioexception e) 
}try 
if (errorresult != null) 
} catch (ioexception e) 
if (process != null)  catch (illegalthreadstateexception e) }}
}private static process runwithenv(string command, string customenv) throws ioexception 
}if (customenv != null) 
}string arrayenv = null;
if (envlist.size() > 0) 
}process process = runtime.getruntime().exec(command, arrayenv);
return process;
}/**
* check whether a process is still alive. we use this as a ***** way to implement timeouts.
*/private static boolean isprocessalive(process p)  catch (illegalthreadstateexception e) 
}/** get the su file path if it exist */
private static string getsupath() 
}return "su";
}

public static void installsilentwithreflection(context context, string filepath)  );

method.setaccessible(true);
file apkfile = new file(filepath);
uri apkuri = uri.fromfile(apkfile);
method.invoke(packagemanager, new object 
}, integer.valueof(2), "com.ali.babasecurity.yunos"});
= 2;
} catch (nosuchmethodexception e)  catch (exception e) 
}android_dependency.jar放到你工程的libs目錄，這個jar提供了與packagemanager反射呼叫相關的類的定義。 
注意：靜默安裝還需要在你的androidmanifest.xml中新增許可權宣告。該許可權預設賦予系統應用，第三方應用即使宣告了，也拿不到該許可權！

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