判断是否安装了Google地图

来源：互联网发布：酥油饼网络剧编辑：程序博客网时间：2024/05/14 13:18

判断是否安装了Google地图，没有弹出Dialog提示安装：

/** * For Google Maps Check *  * @return */private boolean isGoogleMapsInstalled() {try {ApplicationInfo info = getPackageManager().getApplicationInfo("com.google.android.apps.maps", 0);return true;} catch (PackageManager.NameNotFoundException e) {return false;}}private OnClickListener getGoogleMapsListener() {return new OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("market://details?id=com.google.android.apps.maps"));startActivity(intent);// Finish the activity so they can't circumvent the checkfinish();}};}public void checkGoogleMapInstalled() {if (!this.isGoogleMapsInstalled()) {AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setMessage("Install Google Map ?");builder.setCancelable(false);builder.setPositiveButton("Install", getGoogleMapsListener());AlertDialog dialog = builder.create();dialog.show();}}

判断是否安装了地图（无论什么地图）
类似这样子：

try {Uri mUri = Uri.parse("geo:31.249351,121.45905?q=上海交通大学&z=18");intent = new Intent(Intent.ACTION_VIEW, mUri);startActivity(intent);} catch (Exception e) {// TODO: handle exceptionshowToast("您未安装地图，不能查看！");}

打开某一个已知程序

//打开日历try{intent=new Intent();intent.setComponent(new ComponentName("com.android.calendar", "com.android.calendar.LaunchActivity"));  startActivity(intent);}catch (ActivityNotFoundException e) {// TODO: handle exceptionLog.i("tag", "Sorry,we have not found the App.");}//打开另一个已知包名和启动类的Apptry{intent=new Intent();              intent.setComponent(new ComponentName("com.ata.app","com.ata.app.LogoActivity"));            startActivity(intent); }catch (ActivityNotFoundException e) {// TODO: handle exceptionLog.i("tag", "Sorry,we have not found the App.");}

判断服务是否运行.

/**     * 判断服务是否运行.     * @param context     * @param className 判断的服务名字     * @return true 在运行 false 不在运行     */public static boolean isServiceRunning(Context mContext, String className) {ActivityManager activityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);List<ActivityManager.RunningServiceInfo> serviceList = activityManager.getRunningServices(Integer.MAX_VALUE);for(ActivityManager.RunningServiceInfo info:serviceList){if(info.service.getClassName().equals(className)){return true;}}return false;}

让你的Android应用与外部元素互动起来
http://blog.csdn.net/creativemobile/article/details/9673565

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