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Android开发AlertDialog详解

eelq 2022-12-14 阅读 121


一、效果展示

Android开发AlertDialog详解_ide

二、源码

MainActivity.java

package com.example.learning01;

import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;

import android.annotation.SuppressLint;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.View;

public class MainActivity extends AppCompatActivity {

private static final String TAG ="MainActivity";

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


}

public void dialog_show(View view) {
final View dialogView = getLayoutInflater().inflate(R.layout.dialog,null);


AlertDialog.Builder dialog = new AlertDialog.Builder(this);
dialog.setIcon(R.drawable.ic_baseline_arrow_back_24)
.setTitle("Dialog")
.setMessage("你好吗")
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Log.e(TAG, "onClick: "+"确定" );
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Log.e(TAG, "onClick: "+"取消" );
}
})
.setNeutralButton("中间", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Log.e(TAG, "onClick: "+"中间" );
}
})
.setView(dialogView)
.setCancelable(false)
.create()
.show();

}
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity"
android:padding="10dp">

<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="alertDialog"
android:onClick="dialog_show"/>

</LinearLayout>

dialog.xml

<?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:background="#ff0000"
android:orientation="horizontal">

<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_baseline_arrow_back_24"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="dsdsfsfsdfsdf"/>

</LinearLayout>


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