Android使用CardView实现圆角对话框

implementation \'com.android.support:cardview-v7:26.1.0\'

<android.support.v7.widget.CardView
   ns:android=\"http://schemas.android.com/apk/res/android\"
   ns:app=\"http://schemas.android.com/apk/res-auto\"
  android:layout_width=\"match_parent\"
  android:layout_height=\"wrap_content\"
  app:cardCornerRadius=\"@dimen/dp_10\">

  <LinearLayout
    android:layout_width=\"match_parent\"
    android:layout_height=\"wrap_content\"
    android:orientation=\"vertical\">
    <TextView
      android:id=\"@+id/tv_ \"
      android:layout_width=\"match_parent\"
      android:layout_height=\"wrap_content\"
      android:background=\"@color/colorTabClick\"
      android:gravity=\"center\"
      android:padding=\"@dimen/dp_10\"
      android:text=\"温馨提示:确定修改维护详情信息？\"
      android:textColor=\"@color/bg_mainWhite\"
      android:textSize=\"@dimen/dp_16\" />

    <View
      android:layout_width=\"match_parent\"
      android:layout_height=\"1dp\"
      android:background=\"@color/bg_line\" />

    <TextView
      android:id=\"@+id/tv_des\"
      android:layout_width=\"match_parent\"
      android:layout_height=\"wrap_content\"
      android:padding=\"@dimen/dp_10\"
      android:gravity=\"top\"
      />

    <View
      android:layout_width=\"match_parent\"
      android:layout_height=\"1dp\"
      android:background=\"@color/bg_line\" />

    <LinearLayout
      android:layout_width=\"match_parent\"
      android:layout_height=\"50dp\"
      android:orientation=\"horizontal\">

      <TextView
        android:id=\"@+id/tv_cancel\"
        android:layout_width=\"0dp\"
        android:layout_height=\"match_parent\"
        android:layout_weight=\"1.0\"
        android:gravity=\"center\"
        android:text=\"取消\"
        android:textSize=\"@dimen/dp_16\" />

      <View
        android:layout_width=\"1dp\"
        android:layout_height=\"match_parent\"
        android:background=\"@color/bg_line\" />

      <TextView
        android:id=\"@+id/tv_confirm\"
        android:layout_width=\"0dp\"
        android:layout_height=\"match_parent\"
        android:layout_weight=\"1.0\"
        android:gravity=\"center\"
        android:text=\"确定\"
        android:textSize=\"@dimen/dp_16\" />
    </LinearLayout>
  </LinearLayout>

</android.support.v7.widget.CardView>

/**
 * 展示对话框
 */
private void showDialog(String  ) {
  //初始化布局文件
  View dialogView = View.inflate(mContext, R.layout.dialog_layout_test, null);
  //标题
  TextView tv  = (TextView) dialogView.findViewById(R.id.tv_ );
  //确定按钮
  TextView tvConfirm = (TextView) dialogView.findViewById(R.id.tv_confirm);
  //取消按钮
  TextView tvCancel = (TextView) dialogView.findViewById(R.id.tv_cancel);
  //描述信息
  TextView tvDes= (TextView) dialogView.findViewById(R.id.tv_des);
  //设置标题及描述信息
  tv .setText( );
  tvDes.setText(\"退出当前登录后将要重新登录！\");
  //确定和取消按钮监听事件
  tvConfirm.set Listener(new View. Listener() {
    @Override
    public void  (View view) {
      Intent intent = new Intent(mContext,LoginActivity.class);
      startActivity(intent);
      UIUtil.toast(\"退出成功，请重新登录\");
      getActivity().finish();
      mDialog.dismiss();
    }
  });
  tvCancel.set Listener(new View. Listener() {
    @Override
    public void  (View view) {
      mDialog.dismiss();
    }
  });
  mMessageBuilder = new AlertDialog.Builder(mContext);
  mDialog = mMessageBuilder.create();
  //设置背景色为透明，解决设置圆角后有白色直角的问题
  Window window=mDialog.getWindow();
  window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
  mDialog.setView(dialogView);
  mDialog.setCanceledOnTouchOutside(false);//点击屏幕不消失
  mDialog.show();
  //设置参数必须在show之后，不然没有效果
  WindowManager.LayoutParams params = mDialog.getWindow().getAttributes();
  mDialog.getWindow().setAttributes(params);
}