关于安卓底部DialogFragment基类封装（二）
上文封装了一个平常的dialogfragment
dialog fragment
是基于Android X DialogFragment 举行封装的。
本文将会基于BottomSheetDialogFragment举行封装。
对比平常的DialogFragment举行封装，差异的是，BottomSheetDialogFragment是专门用于底部弹窗举行封装的。
它有以下特点：
（一）拥有进场进场的动画（官方自动员画属性）
（二）可扩展BottomViewDialog，和BottomSheetBehavior实现拖拽干系操纵，实现下拉关闭弹窗！
注意事项：
（1）适配软键盘弹出，必要通过dialog的window设置键盘参数，具体代码如下：
getDialog().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING);注意，如果要通过getActivity()设置外层的window键盘参数模式，代码同上，利用键盘监听的方法会失效！具体缘故原由是由于监听不到键盘弹失变乱了！
（2）内部结构为recyclerview时，存在滑动辩论，必要手动设置以下代码，适配欢动辩论变乱：
rvContent.getRecyclerView().setHasFixedSize(true);rvContent.getRecyclerView().setNestedScrollingEnabled(false);原理和recyclerview适配scrollview时划一的。
末了放出全部代码：
package com.jeagine.cloudinstitute2.view.dialogfragment;import android.app.Dialog;import android.content.DialogInterface;import android.graphics.Color;import android.graphics.drawable.ColorDrawable;import android.os.Bundle;import android.view.Gravity;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.FrameLayout;import androidx.annotation.NonNull;import androidx.annotation.Nullable;import androidx.coordinatorlayout.widget.CoordinatorLayout;import com.google.android.material.bottomsheet.BottomSheetBehavior;import com.google.android.material.bottomsheet.BottomSheetDialog;import com.google.android.material.bottomsheet.BottomSheetDialogFragment;import com.jeagine.cloudinstitute2.R;import com.jeagine.yidian.util.SystemBarUtils;import io.reactivex.rxjava3.disposables.CompositeDisposable;import io.reactivex.rxjava3.observers.DisposableObserver;/** * FileName: BaseDialogFragment * Author: lzt * Date: 2022/8/30 17:33 * change by lzt 20221020 抽离默认宽高初始化方法 */public abstract class BaseBottomDialogFragment extends BottomSheetDialogFragment { private int DEFAULT_WIDTH = WindowManager.LayoutParams.MATCH_PARENT;//宽 private int DEFAULT_HEIGHT = WindowManager.LayoutParams.MATCH_PARENT;//高 private int DEFAULT_GRAVITY = Gravity.BOTTOM;//位置 private boolean mCancelable = true;//默认可取消 private boolean mCanceledOnTouchOutside = true;//默认点击外部可取消 private BottomSheetBehavior<FrameLayout> bottomSheetBehavior; @Nullable @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { View mView = inflater.inflate(getLayoutId(), container, false); initViews(mView);// getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING); if (getDialog() != null && getDialog().getWindow() != null) { getDialog().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING); } return mView; } @Override public void onDestroyView() { clearObserver(); super.onDestroyView(); } @NonNull @Override public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) { BottomSheetDialog mDialog = (BottomSheetDialog) super.onCreateDialog(savedInstanceState); if (null != mDialog) {//初始化 mDialog.requestWindowFeature(Window.FEATURE_NO_TITLE); mDialog.setCanceledOnTouchOutside(mCanceledOnTouchOutside); mDialog.setCancelable(mCancelable); Window window = mDialog.getWindow(); if (null != window) { window.getDecorView().setPadding(0, 0, 0, 0); window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); WindowManager.LayoutParams lp = window.getAttributes(); lp.width = defWidth(); lp.height = defHeight(); lp.gravity = DEFAULT_GRAVITY; lp.windowAnimations = android.R.style.Animation_InputMethod; window.setAttributes(lp); window.setDimAmount(dimAmount()); } mDialog.setOnKeyListener(new DialogInterface.OnKeyListener() { @Override public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) { return !mCancelable; } }); } return mDialog; } @Override public void onStart() { super.onStart(); initSlide(); } /** * 初始化滑动交互 */ private void initSlide() { if (!canSlide()) { return; } try { if (getDialog() != null && getDialog() instanceof BottomSheetDialog) { int peekHeight = getPeekHeight() - SystemBarUtils.getStatusBarHeight(getContext()); BottomSheetDialog dialog = (BottomSheetDialog) getDialog(); //把windows的默认配景颜色去掉，否则圆角体现不见 dialog.getWindow().findViewById(R.id.design_bottom_sheet).setBackground(new ColorDrawable(Color.TRANSPARENT)); //获取dialog的根部局 FrameLayout bottomSheet = dialog.getDelegate().findViewById(R.id.design_bottom_sheet); //获取根部局的LayoutParams对象 CoordinatorLayout.LayoutParams layoutParams = (CoordinatorLayout.LayoutParams) bottomSheet.getLayoutParams(); layoutParams.height = peekHeight; //修改弹窗的最大高度，不答应上滑（默认可以上滑） bottomSheet.setLayoutParams(layoutParams); bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet); //peekHeight即弹窗的最大高度 bottomSheetBehavior.setPeekHeight(peekHeight); //初始为睁开状态 bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);// bottomSheetBehavior.setHideable(false); } } catch (Exception e) { e.printStackTrace(); } } /** * 弹窗高度 * 子类可重写该方法返回peekHeight * * @return height */ protected int getPeekHeight() { return getResources().getDisplayMetrics().heightPixels; } protected float dimAmount() { return 0.6f; } protected int defWidth() { return DEFAULT_WIDTH; } protected int defHeight() { return DEFAULT_HEIGHT; } /** * 可否滑动 */ protected boolean canSlide() { return true; } /** * 设置位置 * * @param gravity */ public void setGravity(int gravity) { DEFAULT_GRAVITY = gravity; } /** * 设置宽 * * @param width */ public void setWidth(int width) { DEFAULT_WIDTH = width; } /** * 设置高 * * @param height */ public void setHeight(int height) { DEFAULT_HEIGHT = height; } /** * 设置点击返回按钮是否可取消 * * @param cancelable */ public void setCancelable(boolean cancelable) { mCancelable = cancelable; } /** * 设置点击外部是否可取消 * * @param canceledOnTouchOutside */ public void setCanceledOnTouchOutside(boolean canceledOnTouchOutside) { mCanceledOnTouchOutside = canceledOnTouchOutside; } /** * 设置结构 * * @return */ protected abstract int getLayoutId(); /** * 初始化Views * * @param v */ protected abstract void initViews(View v); //rxjava release---------------------------- private CompositeDisposable mDisposables = new CompositeDisposable(); private void addObserver(DisposableObserver<?> disposableObserver) { mDisposables.add(disposableObserver); } private void removeObserver(DisposableObserver<?> disposableObserver) { if (mDisposables == null || disposableObserver == null) { return; } mDisposables.remove(disposableObserver); } private void clearObserver() { if (mDisposables != null) { mDisposables.clear(); } } public abstract class BaseSafeObserver<T> extends DisposableObserver<T> { @Override protected void onStart() { super.onStart(); addObserver(this); } @Override public void onNext(@NonNull T t) { } @Override public void onError(@NonNull Throwable e) { removeObserver(this); } @Override public void onComplete() { removeObserver(this); } } public void releaseResource() { clearObserver(); } //rxjava release---------------------------- /** * 可否向下滑动收起弹窗 */ protected void setCanSlide(boolean canSlide) {// if (bottomSheetBehavior != null) {// if (bottomSheetBehavior.isHideable() == canSlide) {// return;// }// bottomSheetBehavior.setHideable(canSlide);// } }}that's all------------------------------------------------------------------------- |
