Android Toast 自定义

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:gravity="center"
     android:background="@android:color/holo_green_light"
     android:orientation="vertical" >

     <TextView
         android:id="@+id/tv1"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="text1"/>

      <TextView
         android:id="@+id/tv2"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="text2"/>
 </LinearLayout>

item_toast

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical">

     <Button
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:onClick="toast1"
         android:gravity="center"
         android:text="自定义Toast" />
     <Button
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:onClick="toast2"
         android:gravity="center"
         android:text="Toast.makeText" />

 </LinearLayout>

activity_main

 public class MainActivity extends Activity {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
     }

     public void toast1(View v){
         //Toast通过构造方法创建，但是必须手动设置视图（setView、setDuration）
         Toast toast = new Toast(this);

         //动态加载布局
         View view = getLayoutInflater().inflate(R.layout.item_toast, null);
         TextView tv1 = (TextView) view.findViewById(R.id.tv1);
         TextView tv2 = (TextView) view.findViewById(R.id.tv2);

         //view.setBackgroundResource(R.drawable.ic_launcher);
         view.setBackgroundColor(Color.YELLOW);;
         tv1.setText("提示");
         tv2.setText("再按一次退出");

         toast.setView(view);
         //Gravity.FILL_HORIZONTAL显示水平铺满，offset代表x,y轴上的偏移
         toast.setGravity(Gravity.FILL_HORIZONTAL|Gravity.BOTTOM, 0, 500);
         toast.setDuration(Toast.LENGTH_SHORT);
         toast.show();

     }

     public void toast2(View v){
         Toast toast = Toast.makeText(this, "静态方法构建的Toast", Toast.LENGTH_SHORT);
         toast.setGravity(Gravity.LEFT, 0, 800);
         //只有静态方法构建的toast才能用setText()方法
         toast.setText("你好吗？");//打印你好吗？
         toast.setText(R.string.hello_world);//打印的是Hello world!
         toast.show();
     }

 }

MainActivity