Android的各种Toast .

Toast仅仅是向用户做出一个提示，提示有各种各样的方式。下面将一一道来。

1.最简单的Toast

[java] view plain copy print ?

Toast.makeText(this,"默认",Toast.LENGTH_SHORT).show();

Toast.makeText(this, "默认", Toast.LENGTH_SHORT).show();

2.自定义显示位置的Toast

[java] view plain copy print ?

Toastt;
t=Toast.makeText(this,"自定义显示位置",Toast.LENGTH_SHORT);
t.setGravity(Gravity.CENTER,0,0);
t.show();

Toast t;t=Toast.makeText(this, "自定义显示位置", Toast.LENGTH_SHORT);t.setGravity(Gravity.CENTER, 0, 0);t.show();

3带图片的Toast

[java] view plain copy print ?

t=Toast.makeText(this,"带图片的Toast",Toast.LENGTH_SHORT);
LinearLayoutll=(LinearLayout)t.getView();
ImageViewiv=newImageView(this);
iv.setBackgroundResource(R.drawable.ic_launcher);
ll.addView(iv,0);
t.show();

t=Toast.makeText(this, "带图片的Toast", Toast.LENGTH_SHORT);LinearLayout ll=(LinearLayout) t.getView();ImageView iv=new ImageView(this);iv.setBackgroundResource(R.drawable.ic_launcher);ll.addView(iv,0);t.show();

4.完全自定义的Toast

[java] view plain copy print ?

t=newToast(this);
LayoutInflaterli=this.getLayoutInflater();
Viewvee=li.inflate(R.layout.iii,null);
t.setView(vee);
t.show();

t=new Toast(this);LayoutInflater li=this.getLayoutInflater();View vee=li.inflate(R.layout.iii, null);t.setView(vee);t.show();

5.来自其它线程的Toast

[java] view plain copy print ?

Handlerh=newHandler();
///////////////////////////////////////////////////
newThread(){
@Override
publicvoidrun(){
showToast();
}
}.start();
////////////////////////////////////////////////////////
protectedvoidshowToast(){
h.post(newRunnable(){
@Override
publicvoidrun(){
Toast.makeText(getApplicationContext(),"comefromotherthread",Toast.LENGTH_SHORT).show();
}
});
}

Handler h=new Handler();///////////////////////////////////////////////////new Thread(){@Overridepublic void run() {showToast();}}.start();////////////////////////////////////////////////////////protected void showToast() {h.post(new Runnable(){@Overridepublic void run() {Toast.makeText(getApplicationContext(), "come from other thread", Toast.LENGTH_SHORT).show();}});}

来自其它线程的Toast我有一点要说明，h.post(Runnable r);这个方法里的run是在主线程的。

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