Android 自定义Toast示例

您可以在Android中创建自定义Toast。因此，您可以在Toast上显示一些图像，如祝贺或失败。这意味着您现在可以自定义Toast。

activity_main.xml

拖动您想要在主Activity上显示的组件。

<?xml version="1.0" encoding="utf-8"?>  
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    xmlns:app="http://schemas.android.com/apk/res-auto"  
    xmlns:tools="http://schemas.android.com/tools"  
    android:layout_width="match_parent"  
    android:layout_height="match_parent"  
    tools:context="example.javatpoint.com.customtoast.MainActivity">  

    <TextView  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:text="Hello World!"  
        app:layout_constraintBottom_toBottomOf="parent"  
        app:layout_constraintLeft_toLeftOf="parent"  
        app:layout_constraintRight_toRightOf="parent"  
        app:layout_constraintTop_toTopOf="parent" />  

</android.support.constraint.ConstraintLayout>

customtoast.xml

在layout目录中创建另一个xml文件。在这个xml文件中，我们有一个ImageView和一个TextView。

<?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:id="@+id/custom_toast_layout"  
    android:orientation="vertical"  
    android:background="#F14E23"  
    >  

    <ImageView  
        android:id="@+id/custom_toast_image"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:contentDescription="Hello world"  
        android:src="@drawable/jtp_logo"/>  

    <TextView  
        android:id="@+id/custom_toast_message"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:contentDescription="To"  
        android:text="JavaTpoint custom Toast" />  
</LinearLayout>

Activity类

现在编写代码来显示自定义的toast。

package example.javatpoint.com.customtoast;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

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

        //Creating the LayoutInflater instance
        LayoutInflater li = getLayoutInflater();
        //Getting the View object as defined in the customtoast.xml file
        View layout = li.inflate(R.layout.customtoast,(ViewGroup) findViewById(R.id.custom_toast_layout));

        //Creating the Toast object
        Toast toast = new Toast(getApplicationContext());
        toast.setDuration(Toast.LENGTH_SHORT);
        toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
        toast.setView(layout);//setting the view of custom toast layout
        toast.show();
    }
}