安卓APP的安装和卸载

调用App安装的两个方法:

    方法一:

    

String str = "/myApp.apk";
String fileName = Environment.getExternalStorageDirectory() + str;
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile( new File(fileName)), "application/vnd.android.package-archive");
startActivity(intent);

    方法二:

    

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(Uri.parse( "file://" + filePath),
"application/vnd.android.package-archive");
getApplicationContext().startActivity(intent);

卸载App的方法:

   

Uri packageURI = Uri.parse("package:com.demo.CanavaCancel");
Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
startActivity(uninstallIntent);

以上还涉及到一个安装包的下载，在此就不上代码了，请诸君自行储备.