Android实现自适应屏幕的弹窗广告

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
package com.example.leixiansheng.addialog;
 
import android.annotation.SuppressLint;
import android.app.Dialog;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.Toast;
 
import com.bumptech.glide.Glide;
import com.bumptech.glide.request.animation.GlideAnimation;
import com.bumptech.glide.request.target.SimpleTarget;
 
/**
 * Created by Leixiansheng on 2018/6/28.
 */
 
public class AdDialog extends Dialog implements View.OnClickListener {
 
 private Context context;
 private float finalWidth; //最终宽度
 private float finalHeight; //最终高度
 private int padding = 50; //屏幕边距间隔
 private int picWidth; //图片真实宽度
 private int picHeight; //图片真实高度
 private String mUrl;
 
 
 public AdDialog(Context context,String url) {
 // 更改样式,把背景设置为透明的
 super(context, R.style.LocationDialogStyle);
 this.context = context;
 mUrl = url;
 }
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 requestWindowFeature(Window.FEATURE_NO_TITLE);
 setContentView(R.layout.dialog_ad);
 
 calculateHeightAndWidth();
 
 //初始化布局的位置
 initLayoutParams();
 setCancelable(false);
 setCanceledOnTouchOutside(false);
 }
 
 /**
 * 按实际图片比例对其的宽高进行缩放
 */
 private void calculateHeightAndWidth() {
 DisplayMetrics dm = context.getResources().getDisplayMetrics();
 final int screenWidth = dm.widthPixels;
 final int screenHeight = dm.heightPixels;
 
 //获取图片真正的宽高
 Glide.with(context)
  .load(mUrl)
  .asBitmap()//强制Glide返回一个Bitmap对象
  .into(new SimpleTarget<Bitmap>() {
   @Override
   public void onResourceReady(Bitmap bitmap, GlideAnimation<? super Bitmap> glideAnimation) {
   picWidth = bitmap.getWidth();
   picHeight = bitmap.getHeight();
 
   if (picHeight > picWidth) {
    //真实图片高度大于宽度时
    finalHeight = screenHeight - padding * 2;
    finalWidth = ((picWidth * 100) / picHeight) * finalHeight/100;
   } else {
    //真实图片宽度大于高度时
    finalWidth = screenWidth - padding * 2;
    finalHeight = ((picHeight * 100) / picWidth) * finalWidth/100;
   }
   if ((int) finalWidth > screenWidth || (int) finalHeight > screenHeight) {
    //放大后的比例超出屏幕时
    finalWidth = picWidth;
    finalHeight = picHeight;
   }
   initAdView(finalWidth, finalHeight);
   }
  });
 }
 
 @SuppressLint("ResourceType")
 private void initAdView(float width, float height) {
 RelativeLayout relativeLayout = (RelativeLayout) findViewById(R.id.rl_ad);
 ImageView ivAd = new ImageView(context);
 ivAd.setScaleType(ImageView.ScaleType.FIT_XY);
 ivAd.setId(222);
 ivAd.setOnClickListener(this);
// RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams(UIUtils.px2Dp((int) width), UIUtils.px2Dp((int) height));
 RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams((int) width, (int) height);
 params1.addRule(RelativeLayout.CENTER_HORIZONTAL);
 params1.setMargins(0, dp2Px(50), 0, 0);
 relativeLayout.addView(ivAd, params1);
 
 Glide
  .with(context)
  .load(mUrl)
  .crossFade()
  .into(ivAd);
 
 ImageView ivCancel = new ImageView(context);
 ivCancel.setId(333);
 ivCancel.setOnClickListener(this);
 ivCancel.setImageResource(R.drawable.icon_ad_close);
 RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(dp2Px(30), dp2Px(30));
 params2.addRule(RelativeLayout.ALIGN_PARENT_TOP);
 params2.addRule(RelativeLayout.ALIGN_END,222);
 relativeLayout.addView(ivCancel,params2);
 }
 
 // 初始化布局的参数
 private void initLayoutParams() {
 // 布局的参数
 WindowManager.LayoutParams params = getWindow().getAttributes();
 params.gravity = Gravity.CENTER_HORIZONTAL | Gravity.CENTER;
 getWindow().setAttributes(params);
 }
 
 @Override
 public void onClick(View v) {
 switch (v.getId()) {
  case 222:
  Toast.makeText(context, "你点击了广告，即将进入···",Toast.LENGTH_SHORT).show();
  dismiss();
  break;
  case 333:
  dismiss();
  break;
 }
 }
 
 public int dp2Px(int dp){
    /*
    1、px = dp * (dpi / 160)
    2、px/dp = density;//像素密度比
    */
 DisplayMetrics metrics = context.getResources().getDisplayMetrics();
//    int dpi = metrics.densityDpi;//获得当前设备的dpi ,像素密度
 float density = metrics.density;//密度比
 return (int) (density * dp + .5f);
 }
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
package com.example.leixiansheng.addialog;
 
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
 
import java.util.Random;
 
public class MainActivity extends AppCompatActivity {
 
 private String[] adUrls = {"http://pic17.photophoto.cn/20101028/0017029521232265_b.jpg",
  "http://pic.58pic.com/58pic/13/56/51/95K58PICPFk_1024.jpg",
  "http://img5.imgtn.bdimg.com/it/u=1615585387,2628665620&fm=27&gp=0.jpg",
  "http://img1.imgtn.bdimg.com/it/u=1306190881,4135880992&fm=27&gp=0.jpg"};
 
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 
 randomAd();
 new AdDialog(this, randomAd()).show();
 }
 
 private String randomAd() {
 int i = (int) (Math.random() * (adUrls.length)); // 0 到 3 随机生成
 return adUrls[i];
 }
}