后台进程弹Toast的几种方案

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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();