android之自定义Toast使用方法

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/toast_layout_root"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
android:background="#DAAA"
>
<ImageView android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginRight="10dp"
/>
<TextView android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:textColor="#FFF"
/>
</LinearLayout>

public class MainActivity extends Activity
{
private Button btn;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btn = (Button) findViewById(R.id.btn);
btn.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
//获取LayoutInflater对象，该对象能把XML文件转换为与之一直的View对象
LayoutInflater inflater = getLayoutInflater();
//根据指定的布局文件创建一个具有层级关系的View对象
//第二个参数为View对象的根节点，即LinearLayout的ID
View layout = inflater.inflate(R.layout.toast_layout, (ViewGroup) findViewById(R.id.toast_layout_root));
//查找ImageView控件
//注意是在layout中查找
ImageView image = (ImageView) layout.findViewById(R.id.image);
image.setImageResource(R.drawable.head);
TextView text = (TextView) layout.findViewById(R.id.text);
text.setText("自定义Toast演示程序");
Toast toast = new Toast(getApplicationContext());
//设置Toast的位置
toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
toast.setDuration(Toast.LENGTH_LONG);
//让Toast显示为我们自定义的样子
toast.setView(layout);
toast.show();
}
});
}
}