Android Toast 使用总结

packagecom.example.toastdemo.activity;

importcom.example.toastdemo.R;

importandroid.app.Activity;

importandroid.os.Bundle;

importandroid.os.Handler;

importandroid.view.Gravity;

importandroid.view.LayoutInflater;

importandroid.view.View;

importandroid.view.View.OnClickListener;

importandroid.view.ViewGroup;

importandroid.widget.Button;

importandroid.widget.ImageView;

importandroid.widget.LinearLayout;

importandroid.widget.TextView;

importandroid.widget.Toast;

publicclassMainActivityextendsActivity{

Handlerhandler=newHandler();

Toasttoast=null;

@Override

publicvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

findViewById(R.id.btnSimpleToast).setOnClickListener(

newView.OnClickListener(){

@Override

publicvoidonClick(Viewv){

Toast.makeText(getApplicationContext(),"默认Toast",

Toast.LENGTH_SHORT).show();

}

});

findViewById(R.id.btnSimpleToastWithCustomPosition).setOnClickListener(

newView.OnClickListener(){

@Override

publicvoidonClick(Viewv){

toast=Toast.makeText(getApplicationContext(),

"自定义位置Toast",Toast.LENGTH_LONG);

toast.setGravity(Gravity.CENTER,0,0);

toast.show();

}

});

findViewById(R.id.btnSimpleToastWithImage).setOnClickListener(

newView.OnClickListener(){

@Override

publicvoidonClick(Viewv){

toast=Toast.makeText(getApplicationContext(),

"带图片Toast",Toast.LENGTH_LONG);

toast.setGravity(Gravity.CENTER,0,0);

LinearLayouttoastView=(LinearLayout)toast.getView();

ImageViewimage1=newImageView(

getApplicationContext());

image1.setImageResource(R.drawable.icon);

toastView.addView(image1,0);

toast.show();

}

});

findViewById(R.id.btnCustomToast).setOnClickListener(

newView.OnClickListener(){

@Override

publicvoidonClick(Viewv){

LayoutInflaterinflater=getLayoutInflater();

Viewlayout=inflater.inflate(R.layout.custom,

(ViewGroup)findViewById(R.id.llToast));

ImageViewimage2=(ImageView)layout

.findViewById(R.id.tvImageToast);

image2.setImageResource(R.drawable.icon);

TextViewtitle=(TextView)layout

.findViewById(R.id.tvTitleToast);

title.setText("Attention");

TextViewtext=(TextView)layout

.findViewById(R.id.tvTextToast);

text.setText("自定义Toast");

toast=newToast(getApplicationContext());

toast.setGravity(Gravity.RIGHT|Gravity.TOP,12,40);

toast.setDuration(Toast.LENGTH_LONG);

toast.setView(layout);

toast.show();

}

});

findViewById(R.id.btnRunToastFromOtherThread).setOnClickListener(

newView.OnClickListener(){

@Override

publicvoidonClick(Viewv){

newThread(newRunnable(){

publicvoidrun(){

showToast();

}

}).start();

}

});

}

publicvoidshowToast(){

handler.post(newRunnable(){

@Override

publicvoidrun(){

Toast.makeText(getApplicationContext(),"来自其他线程Toast",

Toast.LENGTH_SHORT).show();

}

});

}

}