如题，当你觉得系统给的对话框太丑了，想自己写时发现完全不知道怎么写，问度娘，又看得一头雾水，那今天就教你傻瓜式的用别人写好的吧，怎么实现的我不管，只要能用就行了
先上图，你觉得OK就用，不Ok就pass：
两个按钮
一个按钮
第一步：
新建文件：
如图所示在drawable上新建7个文件
新建7个resource文件，文件名，这个很重要，分别叫：
第一个：background_shape.xml
第一个代码：
第二个：left_button_shape.xml
第二个代码：
第三个：left_button_shape_depend_resource.xml
第三个代码：
第四个：right_button_shape.xml
第四个代码：
第五个： right_button_shape_depend_resource.xml
第五个代码：
第六个：single_button_shape.xml
第六个代码：
第七个：single_button_shape_depend_resource.xml
第七个代码：
接下来----------------------------------------------------------------------------------------------
还要创建最后一个xml文件，在values下面创建，如图：
创建一个value resource
名称还是要注意，叫：custom_style.xml
其代码如下 ：
别问我可不可以起其他名，如果你是大佬随意，是小白还是老老实实，可以避免很对问题，听话不挨打
第二步：
新建一个Java class，如图：
新建一个类名称为：MyDialog
新建一个类，类名为：MyDialog，将一下代码复制：
import android.app.Dialog;
import android.content.Context;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
/**
* 使用说明：要想改对话框圆角的大小去background_shape.xml里面改，
* 同时还要到left_button_shape_depend_resource.xml和right_button_shape_depend_resource.xml
* 里面去改，要想改背景颜色也是一样的
*
* 本类提供方法setTitleSize()改标题字号和setMessageSize()改内容字号
* setLeft() setRight() setTop() setBottom()四个方法改内容上下左右边距
* setTitleHeight() setBottomHeight()分别设置标题和底部按钮的高度
* 其他的想改字体颜色的到代码里面去看就行了 改标题颜色定位到131行代码
* 内容142 按钮158和171，自行修改，方法就懒得提供了
* 本类一共加载了四次资源，一次是主题，一次是背景，两次是按钮，左一个，右一个
*/
public class MyDialog extends Dialog{
private String title = "提示";
private String message = "这是一个弹窗";
private Context context;
private boolean isThereNavigateButton = false;
private boolean isTherePositiveButton = false;
private float titleSize = 22;
private float messageSize = 18;
private int left = 75;
private int right = 75;
private int top = 0;
private int bottom = 80;
private int titleHeight = 150;
private int bottomHeight = 150;
private TextView titleTextView;
private TextView messageTextView;
private Button navigateButton;
private Button positiveButton;
private LinearLayout linearLayout;
private ImageView imageView1;
private ImageView imageView2;
private LinearLayout linearLayout1;
public MyDialog(Context context) {
super(context, R.style.CustomDialog);//加载资源
this.context = context;
float scale = context.getResources().getDisplayMetrics().density;
left = (int) (25*scale);//设置dp值
right = (int) (25*scale);//设置dp值
createAllView();
setLayout();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//加载布局
setContentView(linearLayout);
//设置按钮有无
if (!isTherePositiveButton){
positiveButton.setVisibility(View.GONE);
imageView2.setVisibility(View.GONE);
navigateButton.setBackgroundResource(R.drawable.single_button_shape);
}
if (!isThereNavigateButton){
navigateButton.setVisibility(View.GONE);
imageView2.setVisibility(View.GONE);
positiveButton.setBackgroundResource(R.drawable.single_button_shape);
}
if (!isThereNavigateButton && !isTherePositiveButton){
imageView1.setVisibility(View.GONE);
linearLayout1.setVisibility(View.GONE);
}
}
public MyDialog setNavigateButton(String content, final View.OnClickListener listener) {
navigateButton.setText(content);
navigateButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onClick(v);
dismiss();
}
});
isThereNavigateButton = true;
return this;
}
public MyDialog setPositiveButton(String content, final View.OnClickListener listener) {
positiveButton.setText(content);
positiveButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onClick(v);
dismiss();
}
});
isTherePositiveButton = true;
return this;
}
//show方法
public void show(){
super.show();
}
//创建控件并设置控件的参数
private void createAllView(){
linearLayout = new LinearLayout(context);
linearLayout.setOrientation(LinearLayout.VERTICAL);
linearLayout.setBackgroundResource(R.drawable.background_shape);//加载资源
titleTextView = new TextView(context);
titleTextView.setGravity(Gravity.CENTER);
titleTextView.setText("警告");
titleTextView.setPadding(0,50,0,0);
titleTextView.setWidth(LinearLayout.LayoutParams.MATCH_PARENT);
titleTextView.setHeight(titleHeight);//设置标题的宽度
titleTextView.setTextColor(Color.BLACK);
titleTextView.setTextSize(titleSize);//设置标题字体大小
titleTextView.setTypeface(Typeface.defaultFromStyle(Typeface.BOLD));//设置字体样式
messageTextView = new TextView(context);
messageTextView.setGravity(Gravity.CENTER);
messageTextView.setTypeface(Typeface.SANS_SERIF);
messageTextView.setText("这是内容");
LinearLayout.LayoutParams params3 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
messageTextView.setLayoutParams(params3);
messageTextView.setTextColor(Color.BLACK);
messageTextView.setTextSize(messageSize);//设置内容的字体大小
messageTextView.setPadding(left, top, right, bottom);//设置内容与四周的间距
imageView1 = new ImageView(context);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, 4);
imageView1.setLayoutParams(params);
imageView1.setBackgroundColor(0xffb1b2b2);//设置背景颜色
linearLayout1 = new LinearLayout(context);
LinearLayout.LayoutParams params1 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, bottomHeight);
linearLayout1.setLayoutParams(params1);
linearLayout1.setOrientation(LinearLayout.HORIZONTAL);
positiveButton = new Button(context);
positiveButton.setTextColor(0xff3478f6);//设置字体颜色
positiveButton.setText("确定");
LinearLayout.LayoutParams params4 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.MATCH_PARENT, 1);
positiveButton.setLayoutParams(params4);
positiveButton.setTextSize(20);//设置确定的字体大小
positiveButton.setBackgroundResource(R.drawable.left_button_shape);//加载资源
imageView2 = new ImageView(context);
LinearLayout.LayoutParams params2 = new LinearLayout.LayoutParams(4, LinearLayout.LayoutParams.MATCH_PARENT);
imageView2.setLayoutParams(params2);
imageView2.setBackgroundColor(0xffb1b2b2);
navigateButton = new Button(context);
navigateButton.setTextColor(0xff3478f6);
navigateButton.setText("取消");
LinearLayout.LayoutParams params5 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.MATCH_PARENT,1);
navigateButton.setLayoutParams(params5);
navigateButton.setTextSize(20);//设置取消的字体大小
navigateButton.setBackgroundResource(R.drawable.right_button_shape);//加载资源
}
//添加布局
private void setLayout(){
linearLayout.addView(titleTextView);
linearLayout.addView(messageTextView);
linearLayout.addView(imageView1);
linearLayout.addView(linearLayout1);
linearLayout1.addView(positiveButton);
linearLayout1.addView(imageView2);
linearLayout1.addView(navigateButton);
}
public String getTitle() {
return title;
}
//设置标题
public MyDialog setTitle(String title) {
this.title = title;
if (titleTextView == null){
System.out.println("null");
}else titleTextView.setText(title);
return this;
}
public String getMessage() {
return message;
}
//设置内容
public MyDialog setMessage(String message) {
this.message = message;
messageTextView.setText(message);
return this;
}
//设置标题大小
public void setTitleSize(float titleSize) {
this.titleSize = titleSize;
titleTextView.setTextSize(titleSize);
}
//设置内容大小
public void setMessageSize(float messageSize) {
this.messageSize = messageSize;
messageTextView.setTextSize(messageSize);
}
//设置内容左间距
public void setLeft(int left) {
this.left = left;
messageTextView.setPadding(left, top, right, bottom);//设置内容与四周的间距
}
//设置内容右间距
public void setRight(int right) {
this.right = right;
messageTextView.setPadding(left, top, right, bottom);//设置内容与四周的间距
}
//设置内容上间距
public void setTop(int top) {
this.top = top;
messageTextView.setPadding(left, top, right, bottom);//设置内容与四周的间距
}
//设置内容下间距
public void setBottom(int bottom) {
this.bottom = bottom;
messageTextView.setPadding(left, top, right, bottom);//设置内容与四周的间距
}
//设置底部按钮的高度
public void setBottomHeight(int bottomHeight) {
this.bottomHeight = bottomHeight;
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, bottomHeight);
linearLayout1.setLayoutParams(params);
}
//设置顶部标题的高度
public void setTitleHeight(int titleHeight) {
this.titleHeight = titleHeight;
titleTextView.setHeight(titleHeight);
}
}
第三步：
使用：
使用方法和Android自带的AlertDialog是一样的，只是不需要create，直接设置完标题和内容，确定和取消，就show就行了，下面是示例：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new MyDialog(MainActivity.this)
.setTitle("警告")
.setMessage("你确定要删除该文件吗?")
.setPositiveButton("是", new View.OnClickListener() {
@Override
public void onClick(View v) {
}
})
.setPositiveButton("否", new View.OnClickListener() {
@Override
public void onClick(View v) {
}
})
.show();
}