在Android开发中，有很多地方都需要启动其他的程序，调起第三方应用(“QQ”、“微信”、“支付宝”、“高德地图”等)，还有一些系统应用(“电话”、“短信”、“拍照”、“图库”等)，下面一起来看看如何启动这些常用应用。

1. 第三方应用

1)通过包名启动

PackageManager packageManager = this.getPackageManager();Intent intent= packageManager.getLaunchIntentForPackage("com.tencent.mobileqq");startActivity(intent);

2)通过包名和类名启动

Intent intent = new Intent();  ComponentName comp = new ComponentName("com.tencent.mobileqq", "com.tencent.mobileqq.activity.SplashActivity");  intent.setComponent(comp);  intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);  startActivity(intent);

2. 系统应用

1)从google搜索内容

Intent intent = new Intent();  intent.setAction(Intent.ACTION_WEB_SEARCH);  intent.putExtra(SearchManager.QUERY,"搜索内容")  startActivity(intent);

2)浏览网页

Uri uri = Uri.parse("http://www.google.com");  Intent intent = new Intent(Intent.ACTION_VIEW,uri);  startActivity(intent);

3)显示地图

Uri uri = Uri.parse("geo:36.899533,66.036476");  Intent intent = newIntent(Intent.Action_VIEW,uri);  startActivity(intent);  

4)路径规划

Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=39.9 116.3&daddr=31.2 121.4");  Intent intent = newIntent(Intent.ACTION_VIEW,URI);  startActivity(intent);  

5)拨打电话

Uri uri = Uri.parse("tel:10086");  Intent intent = new Intent(Intent.ACTION_DIAL,uri);    startActivity(intent);

6)发短信

Uri uri = Uri.parse("smsto:10086");     Intent intent = new Intent(Intent.ACTION_SENDTO, uri);     intent.putExtra("sms_body", "SMS Text");     startActivity(intent);

7)发送彩信

Intent intent = new Intent(Intent.ACTION_SEND);intent.putExtra("sms_body", "Hello");Uri uri = Uri.parse("content://media/external/images/media/23");intent.putExtra(Intent.EXTRA_STREAM, uri);intent.setType("image/png");startActivity(intent);

8)发送Email

Uri uri = Uri.parse("mailto:123456@qq.com");  Intent intent = new Intent(Intent.ACTION_SENDTO, uri);  startActivity(intent);

9)播放多媒体

Intent intent = new Intent(Intent.ACTION_VIEW);  Uri uri = Uri.parse("file:///sdcard/song.mp3");  intent.setDataAndType(uri,"audio/mp3");  startActivity(intent);

10)设置界面

Intent intent = new Intent(android.provider.Settings.ACTION_SETTINGS);startActivity(intent);

11)拍照

 // 打开拍照程序Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);startActivityForResult(intent, 1);

 // 取出照片数据Bundle extras = intent.getExtras();Bitmap bitmap = (Bitmap) extras.get("data");

12)选择图片

Intent intent = new Intent(Intent.ACTION_GET_CONTENT);intent.setType("image/*");startActivityForResult(intent, 2);

13)打开录音机

Intent intent = new Intent(Media.RECORD_SOUND_ACTION);  startActivity(intent);

14)卸载软件

Uri uri = Uri.fromParts("package", strPackageName, null);     Intent intent = new Intent(Intent.ACTION_DELETE, uri);     startActivity(intent);

15)安装软件

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

3. 场景应用

检查版本更新，跳转到腾讯应用宝进行下载更新

/** 跳转到腾讯应用宝下载软件 */public static void goThirdApp() {    if (isAvilible(this, "com.tencent.android.qqdownloader")) {// 市场存在              startAppStore(getApplicationContext(), "项目包名", "com.tencent.android.qqdownloader");    } else {        Uri uri = Uri.parse("http://a.app.qq.com/o/simple.jsp?pkgname=项目包名");        Intent it = new Intent(Intent.ACTION_VIEW, uri);        startActivity(it);    }}

/** 启动到app详情界面 */public static void startAppStore(Context context, String appPkg, String marketPkg) {     try {            if (TextUtils.isEmpty(appPkg))return;                Uri uri = Uri.parse("market://details?id=" + appPkg);                Intent intent = new Intent(Intent.ACTION_VIEW, uri);                     if (!TextUtils.isEmpty(marketPkg)) {                intent.setPackage(marketPkg);             }              intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);              context.startActivity(intent);                   } catch (Exception e) {        e.printStackTrace();                   }      }

/** 判断软件是否存在 */public static boolean isAvilible(Context context, String packageName) {    try {        context.getPackageManager().getPackageInfo(packageName, 0);        return true;    } catch (NameNotFoundException e) {        return false;    }}

到这里就结束啦.

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