Android?DialogFragment使用之底部彈窗封裝示例

更新時(shí)間：2023年09月18日 15:01:37 作者：motosheep

這篇文章主要為大家介紹了Android?DialogFragment使用之底部彈窗封裝示例詳解,有需要的朋友可以借鑒參考下,希望能夠有所幫助,祝大家多多進(jìn)步,早日升職加薪

引言

上文封裝了一個(gè)普通的dialogfragmentdialog fragment是基于Android X DialogFragment 進(jìn)行封裝的。

基于BottomSheetDialogFragment封裝

對(duì)比普通的DialogFragment進(jìn)行封裝，不同的是，BottomSheetDialogFragment是專門用于底部彈窗進(jìn)行封裝的。

特點(diǎn)

（一）擁有出場(chǎng)進(jìn)場(chǎng)的動(dòng)畫（官方自帶動(dòng)畫屬性）

（二）可擴(kuò)展BottomViewDialog，和BottomSheetBehavior實(shí)現(xiàn)拖拽相關(guān)操作，實(shí)現(xiàn)下拉關(guān)閉彈窗！

注意事項(xiàng)

（1）適配軟鍵盤彈出，需要通過dialog的window設(shè)置鍵盤參數(shù)，具體代碼如下：

getDialog().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING);

注意，如果要通過getActivity()設(shè)置外層的window鍵盤參數(shù)模式，代碼同上，使用鍵盤監(jiān)聽的方法會(huì)失效！具體原因是因?yàn)楸O(jiān)聽不到鍵盤彈出事件了！

（2）內(nèi)部布局為recyclerview時(shí)，存在滑動(dòng)沖突，需要手動(dòng)設(shè)置以下代碼，適配歡動(dòng)沖突事件：

rvContent.getRecyclerView().setHasFixedSize(true);
rvContent.getRecyclerView().setNestedScrollingEnabled(false);

原理和recyclerview適配scrollview時(shí)一致的。

最后放出全部代碼：

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 抽離默認(rèn)寬高初始化方法
 */
public abstract class BaseBottomDialogFragment extends BottomSheetDialogFragment {
    private int DEFAULT_WIDTH = WindowManager.LayoutParams.MATCH_PARENT;//寬
    private int DEFAULT_HEIGHT = WindowManager.LayoutParams.MATCH_PARENT;//高
    private int DEFAULT_GRAVITY = Gravity.BOTTOM;//位置
    private boolean mCancelable = true;//默認(rèn)可取消
    private boolean mCanceledOnTouchOutside = true;//默認(rèn)點(diǎn)擊外部可取消
    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();
    }
    /**
     * 初始化滑動(dòng)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的默認(rèn)背景顏色去掉，不然圓角顯示不見
                dialog.getWindow().findViewById(R.id.design_bottom_sheet).setBackground(new ColorDrawable(Color.TRANSPARENT));
                //獲取dialog的根部局
                FrameLayout bottomSheet = dialog.getDelegate().findViewById(R.id.design_bottom_sheet);
                //獲取根部局的LayoutParams對(duì)象
                CoordinatorLayout.LayoutParams layoutParams = (CoordinatorLayout.LayoutParams) bottomSheet.getLayoutParams();
                layoutParams.height = peekHeight;
                //修改彈窗的最大高度，不允許上滑（默認(rèn)可以上滑）
                bottomSheet.setLayoutParams(layoutParams);
                bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet);
                //peekHeight即彈窗的最大高度
                bottomSheetBehavior.setPeekHeight(peekHeight);
                //初始為展開狀態(tài)
                bottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
//                bottomSheetBehavior.setHideable(false);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    /**
     * 彈窗高度
     * 子類可重寫該方法返回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;
    }
    /**
     * 能否滑動(dòng)
     */
    protected boolean canSlide() {
        return true;
    }
    /**
     * 設(shè)置位置
     *
     * @param gravity
     */
    public void setGravity(int gravity) {
        DEFAULT_GRAVITY = gravity;
    }
    /**
     * 設(shè)置寬
     *
     * @param width
     */
    public void setWidth(int width) {
        DEFAULT_WIDTH = width;
    }
    /**
     * 設(shè)置高
     *
     * @param height
     */
    public void setHeight(int height) {
        DEFAULT_HEIGHT = height;
    }
    /**
     * 設(shè)置點(diǎn)擊返回按鈕是否可取消
     *
     * @param cancelable
     */
    public void setCancelable(boolean cancelable) {
        mCancelable = cancelable;
    }
    /**
     * 設(shè)置點(diǎn)擊外部是否可取消
     *
     * @param canceledOnTouchOutside
     */
    public void setCanceledOnTouchOutside(boolean canceledOnTouchOutside) {
        mCanceledOnTouchOutside = canceledOnTouchOutside;
    }
    /**
     * 設(shè)置布局
     *
     * @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----------------------------
    /**
     * 能否向下滑動(dòng)收起彈窗
     */
    protected void setCanSlide(boolean canSlide) {
//        if (bottomSheetBehavior != null) {
//            if (bottomSheetBehavior.isHideable() == canSlide) {
//                return;
//            }
//            bottomSheetBehavior.setHideable(canSlide);
//        }
    }
}

以上就是Android DialogFragment使用之底部彈窗封裝示例的詳細(xì)內(nèi)容，更多關(guān)于Android DialogFragment底部彈窗封裝的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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