package com.example.installmyapk;

 import java.io.File;

 import android.net.Uri;

 import android.os.Bundle;

 import android.app.Activity;

 import android.content.Intent;

 import android.view.Menu;

 import android.view.View;

 import android.widget.EditText;

 public class MainActivity extends Activity {

     private EditText et_path;

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.activity_main);

         et_path = (EditText) findViewById(R.id.et_path);

     }

     public void click(View view){

         String path = et_path.getText().toString().trim();

         Intent intent = new Intent();

         intent.setAction("android.intent.action.VIEW");

         intent.addCategory("android.intent.category.DEFAULT");

         intent.setDataAndType(Uri.fromFile(new File(path)), "application/vnd.android.package-archive");

         startActivity(intent);

     }

 }