后台进程弹Toast的几种方案

new Thread(){
@Override
public void run(){
   // Looper.prepare();
   new Handler(Looper.getMainLooper()).post(new Runnable() {
       
        @Override
       public void run() {
           Toast.makeText(getApplicationContext(),"test1",Toast.LENGTH_SHORT).show();
       }
   });
}
}.start();

new Thread(){
   @Override
   public void run(){
       // Looper.prepare();
       new Handler(Looper.getMainLooper()){
           @Override
           public void handleMessage(Message msg){
               Toast.makeText(getApplicationContext(),"test2",Toast.LENGTH_SHORT).show();
           }
       }.obtainMessage().sendToTarget();
   }
}.start();