列出手机中所有的App，点击启动

Main layout

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical" android:layout_width="fill_parent"android:layout_height="fill_parent"><LinearLayout android:layout_width="fill_parent"android:layout_height="50dip" android:gravity="center_vertical|center_horizontal"><TextView android:layout_width="wrap_content"android:layout_height="wrap_content" android:text="选择安装文件" /></LinearLayout><ListView android:layout_width="fill_parent"android:layout_height="wrap_content" android:id="@+id/list" /></LinearLayout>

Item Layout

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:id="@+id/item" android:orientation="horizontal"android:layout_width="fill_parent" android:layout_height="80dip"><LinearLayout android:layout_width="240dip"android:layout_height="40dip" android:gravity="left"><TextView android:text="appName:  " android:layout_width="wrap_content"android:layout_height="wrap_content" android:layout_gravity="center_vertical" /><TextView android:id="@+id/appname" android:layout_width="wrap_content"android:layout_height="wrap_content" android:maxLines="1" android:marqueeRepeatLimit="marquee_forever"android:ellipsize="marquee"android:maxWidth="100dip" android:layout_gravity="center_vertical" /></LinearLayout><LinearLayout android:layout_width="120dip"android:layout_height="40dip" android:layout_gravity="right"><Button android:id="@+id/btn" android:layout_width="80dip"android:layout_height="40dip" android:text="打开"android:layout_gravity="center_vertical" /></LinearLayout></LinearLayout>

TestActivity

package com.nico;import java.util.List;import android.app.Activity;import android.content.Intent;import android.content.pm.ApplicationInfo;import android.os.Bundle;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.view.View.OnClickListener;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.ListView;import android.widget.TextView;public class TestActivity extends Activity {public List<ApplicationInfo> applist = null;public ListView list = null;public LayoutInflater inflater = null;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);list = (ListView) findViewById(R.id.list);myAdapter madapter = new myAdapter();inflater = getLayoutInflater();applist = this.getPackageManager().getInstalledApplications(0);list.setAdapter(madapter);// getPackageManager().getInstalledPackages(0)}public class myAdapter extends BaseAdapter {@Overridepublic int getCount() {// TODO Auto-generated method stubreturn applist.size();}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn applist.get(position);}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(final int position, View convertView, ViewGroup parent) {TextView txt = null;if (convertView != null) {txt = (TextView) convertView.findViewById(R.id.appname);txt.setText(applist.get(position).loadLabel(TestActivity.this.getPackageManager()));} else {convertView = inflater.inflate(R.layout.item, null);txt = (TextView) convertView.findViewById(R.id.appname);// Log.v("Test",// "2 "+applist.get(position).loadLabel(TestActivity.this.getPackageManager()));txt.setText(applist.get(position).loadLabel(TestActivity.this.getPackageManager()));}Button btn = (Button) convertView.findViewById(R.id.btn);btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Intent intent = getPackageManager().getLaunchIntentForPackage(applist.get(position).packageName);TestActivity.this.startActivity(intent);}});return convertView;}}}

更多相关文章

随机推荐