关于安卓DialogFragment基类封装（一）

对于DialogFragment，在androidX 1.1.0后，已修复内存泄漏

本文内容较短，直接上干货，核心代码如下：

/**
 * FileName: BaseDialogFragment
 * Author: lzt
 * Date: 2022/8/30 17:33
 * 注意dialog fragment版本，1.1.0以上已修复内存泄漏
 */
public abstract class BaseDialogFragment extends DialogFragment {

    private int DEFAULT_WIDTH = WindowManager.LayoutParams.MATCH_PARENT;//宽
    private int DEFAULT_HEIGHT = WindowManager.LayoutParams.WRAP_CONTENT;//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

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View mView = inflater.inflate(getLayoutId(), container, false);
        initViews(mView);
        return mView;
    }

    @NonNull
    @Override
    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
        Dialog mDialog = 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 = DEFAULT_WIDTH;
                lp.height = DEFAULT_HEIGHT;
                lp.gravity = DEFAULT_GRAVITY;
                lp.windowAnimations = android.R.style.Animation_InputMethod;
                window.setAttributes(lp);
            }
            mDialog.setOnKeyListener(new DialogInterface.OnKeyListener() {
                @Override
                public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
                    return !mCancelable;
                }
            });
        }
        return mDialog;
    }

    /**
     * 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;
    }

    /**
     * 设置布局
     *
     * @return
     */
    protected abstract int getLayoutId();

    /**
     * 初始化Views
     *
     * @param v
     */
    protected abstract void initViews(View v);
}

that's all------------------------------------------------------