使用这个，自定义AlertDialog在你手里都不是问题

摘要: android简单自定义各种样式的 AlertDialog

最近一直在搞自定义的AlertDialog，先贴一下图。

这几种都是自定义的AlertDialog，还支持从Service弹出。好了，话不多说，看使用方法：

CustomDialogBuilder.With(this)//上下文
.load(R.layout.dialog_loading)//自定义的布局文件
.setDimAmount(0.5f)//设置背景透明度
.setCancelable(true)//是否点击区域外隐藏
.setHeigh(DensityUtil.dip2px(this,100))//设置高度
.setWidth(DensityUtil.dip2px(this,100))//设置宽度
.setWidth(0.5f)//设置宽度，以屏幕宽度为基准，取百分比
.InitView(null)//初始化View
.InitEvent(null)//初始化事件
.show();//显示

是不是觉得简单好多，我们关心的只有，我们该关心的，至于其他的繁琐的东西，我们不关心好伐。

我们这里看一下是怎么写的，下面会贴出GitHub链接

CustomDialogBuilder.java

import android.app.Activity;
import android.app.Fragment;
import android.content.Context;
import android.support.annotation.LayoutRes;
import android.support.v4.app.FragmentActivity;
import android.support.v7.app.AlertDialog;

import com.xiaolei.easyfreamwork.R;
import com.xiaolei.easyfreamwork.application.ApplicationBreage;
import com.xiaolei.easyfreamwork.utils.Log;

/**
* Created by xiaolei on 2017/10/9.
*/

public class CustomDialogBuilder
{
private boolean isBackNet = false;
private AlertDialog.Builder builder;
private Context context;
private CustomDialogBuilder(Context context)
{
this.context = context;
if (Activity.class.isInstance(context)
|| FragmentActivity.class.isInstance(context))
{
if ((Activity.class.isInstance(context) && !((Activity) context).isFinishing())
|| (FragmentActivity.class.isInstance(context) && !((FragmentActivity) context).isFinishing()))
{
builder = new AlertDialog.Builder(context);
} else
{
Log.e("LOG", "不是activity，或者activity已关闭");
}
} else
{
builder = new AlertDialog.Builder(ApplicationBreage.getInstance().getContext(),
R.style.Base_Theme_AppCompat_Light_Dialog);
isBackNet = true;
}
}

public static CustomDialogBuilder With(Activity activity)
{
return new CustomDialogBuilder(activity);
}

public static CustomDialogBuilder With(FragmentActivity activity)
{
return new CustomDialogBuilder(activity);
}

public static CustomDialogBuilder With(Fragment fragment)
{
return new CustomDialogBuilder(fragment.getActivity());
}

public static CustomDialogBuilder With(android.support.v4.app.Fragment fragment)
{
return new CustomDialogBuilder(fragment.getActivity());
}

public static CustomDialogBuilder With(Context context)
{
return new CustomDialogBuilder(context);
}

/**
* 加载布局文件
*
* @param layout
*/
public DialogInitConfig load(@LayoutRes int layout)
{
return new DialogInitConfig(layout,builder,isBackNet,context);
}

public Context getContext()
{
return context;
}
}

DialogInitConfig.java

import android.content.Context;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.support.annotation.FloatRange;
import android.support.annotation.LayoutRes;
import android.support.v7.app.AlertDialog;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;

/**
*
* Created by xiaolei on 2017/10/9.
*/

public class DialogInitConfig
{
private DialogInitCallBack initCallBack;
private DialogEventCallBack eventCallBack;
private int width = -1, heigh = -1;
private float dimAmount = 0f;
@LayoutRes
private int layout = -1;
private AlertDialog.Builder builder;
private boolean isBackNet = false;
private boolean cancelable = true;
private Context context;

public DialogInitConfig(@LayoutRes int layout, AlertDialog.Builder builder, boolean isBackNet, Context context)
{
this.layout = layout;
this.builder = builder;
this.isBackNet = isBackNet;
this.context = context;
}

/**
* 获取上下文
* @return
*/
public Context getContext()
{
return context;
}

/**
* 初始化UI
* @param callBack
* @return
*/
public DialogInitConfig InitView(DialogInitCallBack callBack)
{
initCallBack = callBack;
return this;
}

/**
* 初始化事件
* @param callBack
* @return
*/
public DialogInitConfig InitEvent(DialogEventCallBack callBack)
{
eventCallBack = callBack;
return this;
}

/**
* 设置宽度，绝对的值
* @param width
* @return
*/
public DialogInitConfig setWidth(int width)
{
this.width = width;
return this;
}

/**
* 设置宽度，屏幕的百分比的
* @param widthPercent
* @return
*/
public DialogInitConfig setWidth(@FloatRange(from = 0.0,to = 1.0) double widthPercent)
{
WindowManager wm = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE);
this.width = (int) (wm.getDefaultDisplay().getWidth() * widthPercent);
return this;
}

/**
* 设置高度
* @param heigh
* @return
*/
public DialogInitConfig setHeigh(int heigh)
{
this.heigh = heigh;
return this;
}

/**
* 设置背景透明度
* @param dimAmount
* @return
*/
public DialogInitConfig setDimAmount(@FloatRange(from = 0.0,to = 1.0) float dimAmount)
{
this.dimAmount = dimAmount;
return this;
}

/**
* 设置是否可以点击侧边取消
* @param cancelable
* @return
*/
public DialogInitConfig setCancelable(boolean cancelable)
{
this.cancelable = cancelable;
return this;
}

/**
* 显示出来
* @return  返回一个dialog，方便dismiss
*/
public AlertDialog show()
{
if (builder == null)
{
return null;
}
builder.setTitle("");
builder.setMessage("");
builder.setCancelable(cancelable);

AlertDialog alertDialog = builder.create();
if (alertDialog == null)
{
return null;
}
Window window = alertDialog.getWindow();
if (window != null)
{
WindowManager.LayoutParams params = window.getAttributes();
// 去除四角黑色背景
window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
if (isBackNet)
{
window.setType(WindowManager.LayoutParams.TYPE_TOAST);
}
window.setAttributes(params);
}
alertDialog.show();
try
{
View view = View.inflate(alertDialog.getContext(), layout, null);
alertDialog.setContentView(view);
if (initCallBack != null)
{
initCallBack.onInit(alertDialog, view);
}
if (eventCallBack != null)
{
eventCallBack.initEvent(alertDialog, view);
}

window = alertDialog.getWindow();
if (window != null)
{
WindowManager.LayoutParams params = window.getAttributes();
window.setGravity(Gravity.CENTER);
DisplayMetrics dm = new DisplayMetrics();
window.getWindowManager().getDefaultDisplay().getMetrics(dm);
if (width != -1)
{
params.width = width;
}
if (heigh != -1)
{
params.height = heigh;
}
// 设置周围的暗色系数
params.dimAmount = dimAmount;
window.setAttributes(params);
}
} catch (Exception e)
{
e.printStackTrace();
}
return alertDialog;
}

public interface DialogInitCallBack
{
public void onInit(AlertDialog alertDialog, View view);
}

public interface DialogEventCallBack
{
public void initEvent(AlertDialog alertDialog, View view);
}
}

好吧其实我也知道你们根本不会看这些代码的，我就是要贴出来。

这里贴GitHub链接 :https://github.com/xiaolei123/EasyFreamTest

The End