本文主要介绍通过代码的方式来实现应用程序的安装与卸载。。
因为应用程序的安装与卸载模块在android系统中已经写好了,所以我们只需要激活就行了
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
<?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
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; } }