前言
前面已经讲过dialogFragment的简介和默认用法，但默认创建的dialogFragment虽然使用方便但有不少局限，所以今天就讲讲自定义dialogFragment的知识
涉及以下知识点：
- dialogFragment的父类
- 通过dialogFragment的父类建一个dialog演示
一.添加butterKnife依赖
由于AppDialogFragment 基类中集成了butterKnife，所以需要在buildle.gradle(mudel：app)中添加以下依赖
//butterKnife
compile 'com.jakewharton:butterknife:8.5.1'
//这条千万不能忘记!!
annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1'
二.dialogFragment的父类AppDialogFragment
代码如下：
package com.dialogfragmentdemo.base;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.AppCompatDialogFragment;
import android.util.DisplayMetrics;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.EditText;
import com.dialogfragmentdemo.util.DoubleClickUtil;
import com.dialogfragmentdemo.util.LogUtil;
import com.dialogfragmentdemo.util.StringUtil;
import butterknife.ButterKnife;
import butterknife.Unbinder;
/**
* Title:DialogFragment基类
* Description:
*
* Created by pei
* Date: 2017/12/4
*/
public abstract class AppDialogFragment extends AppCompatDialogFragment implements View.OnClickListener{
private static final int RID=-1;//默认背景资源id
public static final int WRAP_CONTENT=-2;//dialog窗口大小自适应
public static final int MATCH_PARENT=-3;//dialog窗口全屏
protected View mLayoutView;
private Unbinder mUnbinder;
private Context mContext;
private boolean mBackCancel=true;//默认点击返回键关闭dialog
private boolean mTouchOutsideCancel=true;//默认点击dialog外面屏幕，dialog关闭
private int mBackGroundId=RID;//背景资源id，类似R.drawable.ui_shape_gray_round_corner
protected double mScaleWidth=WRAP_CONTENT;//屏幕宽度比例
protected double mScaleHeight=WRAP_CONTENT;//屏幕高度比例
@Override
public void onAttach(Context context) {
super.onAttach(context);
mContext=context;
LogUtil.e(AppDialogFragment.class,"======我被调用了======");
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
double windowSize[]=getWindowSize();
if(windowSize!=null){
mScaleWidth=windowSize[0];
mScaleHeight=windowSize[1];
}
//设置全屏
if(mScaleWidth==MATCH_PARENT&&mScaleHeight==MATCH_PARENT){
setStyle(STYLE_NO_FRAME, android.R.style.Theme_Holo_Light);
}
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
mLayoutView = inflater.inflate(getLayoutId(), container, false);
mUnbinder= ButterKnife.bind(this,mLayoutView);//绑定framgent
//初始化
onCreateFragmentView(inflater, container, savedInstanceState);
return mLayoutView;
}
protected void onCreateFragmentView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
initData();
setListener();
}
@Override
public void onStart() {
super.onStart();
//设置窗口属性
setDialog();
}
/**设置窗口属性**/
private void setDialog(){
Dialog dialog=getDialog();
if(dialog!=null) {
//返回键是否消失
// getDialog().setCancelable(mBackCancel);
dialog.setOnKeyListener(new DialogInterface.OnKeyListener() {
@Override
public boolean onKey(DialogInterface dialogInterface, int keyCode, KeyEvent keyEvent) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
return !mBackCancel;
}
return false;
}
});
//触碰dialog外面是否消失
dialog.setCanceledOnTouchOutside(mTouchOutsideCancel);
//设置窗口大小
setWindowSize(dialog);
}
}
/**设置窗口大小**/
private void setWindowSize(Dialog dialog){
Window window = dialog.getWindow();
if(window!=null) {
//设置背景
if (mBackGroundId != RID) {
window.setBackgroundDrawableResource(mBackGroundId);
}
//设置透明度
WindowManager.LayoutParams windowParams = window.getAttributes();
windowParams.dimAmount = 0.0f;
windowParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
windowParams.height = ViewGroup.LayoutParams.MATCH_PARENT;
window.setAttributes(windowParams);
if(mScaleWidth!=MATCH_PARENT&&mScaleHeight!=MATCH_PARENT){
DisplayMetrics dm = new DisplayMetrics();
((FragmentActivity) mContext).getWindowManager().getDefaultDisplay().getMetrics(dm);
setWindowWidth(windowParams,dm);//设置宽度
setWindowHeight(windowParams,dm);//设置高度
window.setLayout(windowParams.width,windowParams.height);
}
}
}
/**设置窗口宽度**/
private void setWindowWidth(WindowManager.LayoutParams windowParams,DisplayMetrics dm) {
if (mScaleWidth == WRAP_CONTENT) {
windowParams.width = ViewGroup.LayoutParams.WRAP_CONTENT;
} else if (mScaleWidth > 0) {
windowParams.width = (int) (dm.widthPixels * mScaleWidth); // 宽度设置为屏幕的0.65
} else {
throw new UnknownError("dialog宽度系数设置错误");
}
}
/**设置窗口高度**/
private void setWindowHeight(WindowManager.LayoutParams windowParams,DisplayMetrics dm) {
if (mScaleHeight == WRAP_CONTENT) {
windowParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
} else if (mScaleHeight > 0) {
windowParams.height = (int) (dm.heightPixels * mScaleHeight); // 高度设置为屏幕的0.6
} else {
throw new UnknownError("dialog高度系数设置错误");
}
}
@Override
public void onClick(View v) {
DoubleClickUtil.shakeClick(v);
}
@Override
public void onDestroy() {
if(mUnbinder!=null){
mUnbinder.unbind();
}
super.onDestroy();
}
protected abstract double[] getWindowSize();
protected abstract int getLayoutId();
protected abstract void initData();
protected abstract void setListener();
/**设置dialog背景色**/
public AppDialogFragment setBackGroundId(int rId){
this.mBackGroundId=rId;
return this;
}
/**设置点击返回键是否关闭dialog**/
public AppDialogFragment setCancel(boolean canDismiss) {
this.mBackCancel = canDismiss;
return this;
}
/**设置点击屏幕外面是否关闭dialog**/
public AppDialogFragment setCancelOnTouchOutside(boolean canDismiss){
this.mTouchOutsideCancel=canDismiss;
return this;
}
/***
* 显示dialog，需要传 fragmentManager=getSupportFragmentManager()
* @param fragmentManager
*/
public void showDialog(FragmentManager fragmentManager){
try {
String className=this.getClass().getSimpleName();
this.show(fragmentManager,className);
} catch (Exception e) {
e.printStackTrace();
LogUtil.e(AppDialogFragment.class,"===showDialog error===="+e.getMessage());
}
}
/**获取editText的值**/
protected String getTextOfEditText(EditText et){
if (et == null) {
return null;
}
if (et.getText() == null) {
return null;
}
if (StringUtil.isEmpty(et.getText().toString())) {
return "";
}
return et.getText().toString().trim();
}
}
//==============================自定义dialogFragment的使用范例==================================
//public class MyFragmentDialog extends AppDialogFragment{
//
// @BindView(R.id.btn_test)
// Button mBtnTest;
//
// @Override
// protected double[] getWindowSize() {
// return new double[]{0.5,0.5};
// }
//
// @Override
// protected int getLayoutId() {
// return R.layout.dialog_fragment_test;
// }
//
// @Override
// protected void initData() {
//
// }
//
// @Override
// protected void setListener() {
//
// }
//}
三.写一个MyFragmentDialog继承于AppDialogFragment
/**
* Title:
* Description:
*
* Created by pei
* Date: 2017/12/4
*/
public class MyFragmentDialog extends AppDialogFragment{
@BindView(R.id.btn_test)
Button mBtnTest;
@Override
protected double[] getWindowSize() {
return new double[]{0.5,0.5};
}
@Override
protected int getLayoutId() {
return R.layout.dialog_fragment_test;
}
@Override
protected void initData() {
}
@Override
protected void setListener() {
mBtnTest.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
MyFragmentDialog.this.dismiss();
}
});
}
}
涉及到的dialog_fragment_test.xml布局代码：
四.在activity中调用如下：
new MyFragmentDialog().setCancel(false)
.setCancelOnTouchOutside(false)
.showDialog(getSupportFragmentManager());
五.效果图：
ok,就讲到这里了，谢谢诶。