安卓APP的安装和卸载

调用App安装的两个方法:

    方法一:

    

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

    方法二:

    

1. 
   

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

卸载App的方法:

   

1. Uri packageURI = Uri.parse("package:com.demo.CanavaCancel");
2. Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
3. 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.