Android自定义Dialog内部透明、外部遮罩效果

package com.gxjl.pe.gxjlpesdk.view;
 
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TextView;
 
import com.gxjl.pe.gxjlpesdk.R;
 
/**
 * 相机、相册选择 弹框
 * Created by xiaoshuai on 2018/8/20.
 */
 
public abstract class CameraPhotoDialog extends Dialog implements View.OnClickListener{
 private Context context;
 
 public CameraPhotoDialog(@NonNull Context context) {
  super(context, R.style.dialogTransparent);//内容样式在这里引入
 
  this.cOntext= context;
 }
 
 public CameraPhotoDialog(@NonNull Context context, int themeResId) {
  super(context, themeResId);
 }
 
 protected CameraPhotoDialog(@NonNull Context context, boolean cancelable, @Nullable OnCancelListener cancelListener) {
  super(context, cancelable, cancelListener);
 }
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
 
  setContentView(R.layout.dialog_camrea_photo);
 
 //tv_title = findViewById(R.id.tv_title);
 
  Window dialogWindow = getWindow();
  WindowManager.LayoutParams lp = dialogWindow.getAttributes();
  DisplayMetrics d = context.getResources().getDisplayMetrics(); // 获取屏幕宽、高用
  lp.width = (int) (d.widthPixels * 0.9); // 宽度设置为屏幕宽度的80%
  //lp.dimAmount=0.0f;//外围遮罩透明度0.0f-1.0f
  dialogWindow.setAttributes(lp);
  dialogWindow.setGravity(Gravity.BOTTOM);//内围区域底部显示
 
 }
 
 @Override
 public void onClick(View view) {
  int i = view.getId();
  if (i == R.id.tv_cancel) {
   this.dismiss();
  }
 }
 
 protected abstract void confirm();
}

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