注意：

intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");这一句话中,第一个参数是要安装的apk的路径,第二个参数是apk所对应的类型。可以砸tomcat的安装目录下的conf目录下的web.xml中找到

程序运行截图：

代码实现如下：

1、main.xml

复制代码 代码如下:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical" >

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="安装"

android:onClick="install"

/>

<Button

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="卸载"

android:onClick="uninstall"

/>

</LinearLayout>

2、MainActivity

复制代码 代码如下:

package com.njupt.install;

import java.io.File;

import android.net.Uri;

import android.os.Bundle;

import android.os.Environment;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.View;

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

}

public void install(View v){

Intent intent = new Intent();

intent.setAction(Intent.ACTION_VIEW);

File file = new File(Environment.getExternalStorageDirectory(),"HtmlUI1.apk");

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

startActivity(intent);

}

public void uninstall(View v){

Intent intent = new Intent();

intent.setAction(Intent.ACTION_DELETE);

intent.setData(Uri.parse("package:com.njupt.htmlui1"));

startActivity(intent);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

}