从另一个程序安装apk

Question

我正在尝试创建一个从特定服务器自动下载apk并将其安装在系统上的应用程序.我的安装代码如下所示,但不起作用.

File f = new File("/mnt/sdcard/download/", "Demo.apk");
Log.i("Demo", "f "+f.getAbsoluteFile());
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(f), "application/vnd.android.package_archive");
intent.addFlags(intent.FLAG_ACTIVITY_NEW_TASK);
m_context.startActivity(intent);            

我是否需要授予Manifest.xml安装权利？我知道之前已经问过这个问题,但到目前为止,没有一个答案对我有帮助.

Answer 1

这就是我的情况,

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(path+"/<application_name>.apk")), "application/vnd.android.package-archive");
startActivity(intent);

这些是权限..

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

Answer 2

感谢您的帮助,最后让它发挥作用.我分享我的工作代码和工作Manifest.xml.

package test.installer;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;

public class InstallToolActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.i("Demo", "onCreate");
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.setDataAndType(Uri.parse("file://"+"/mnt/sdcard/HelloWorld.apk"), "application/vnd.android.package-archive");
    intent.addFlags(intent.FLAG_ACTIVITY_NEW_TASK);
    startActivity(intent);
    }
}

Manifext.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="test.installer"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="11" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.INSTALL_PACKAGES"/>
<uses-permission android:name="android.permission.RESTART_PACKAGES"/>


<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name" >
    <activity
        android:label="@string/app_name"
        android:name=".InstallToolActivity" >
        <intent-filter >
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

//弗雷德里克