1 apk安装界面:
* <intent-filter>
* <action android:name="android.intent.action.VIEW" />
* <category android:name="android.intent.category.DEFAULT" />
* <data android:scheme="content" />
* <data android:scheme="file" />
* <data android:mimeType="application/vnd.android.package-archive" />
* </intent-filter>
Intent intent = new Intent();
intent.setAction("android.intent.action.VIEW");
intent.addCategory("android.intent.category.DEFAULT");
intent.setDataAndType(Uri.parse("file://"+target), "application/vnd.android.package-archive");
startActivityForResult(intent, 0);