首先这是学习开源项目的地址https://github.com/DaxiaK/MyDiary，不知道为什么这软件最重要的功能写日记在AVD还有红米K30u都不能运行。今天先实现的是点击主页面的设置按钮，弹出一个对话框给用户选择（并不是进入一个新页面）。在MyDiary中，点击对话框的图标都会跳转到新的页面（Activity），本次先将这些部分省略，改成点击每一个图标在LogCat中显示被点中的图标。这里需要注意的是drawable文件如图片的命名规则是只能数字和英文小写，不能大写。
MainActivity.java
1 package com.example.ourdiary.main;
2
3 import androidx.appcompat.app.AppCompatActivity;
4
5 import android.os.Bundle;
6 import android.view.View;
7 import android.widget.ImageView;
8
9 import com.example.ourdiary.R;
10
11 public class MainActivity extends AppCompatActivity implements View.OnClickListener{
12
13 private ImageView IV_main_setting;
14
15 @Override
16 protected void onCreate(Bundle savedInstanceState) {
17 super.onCreate(savedInstanceState);
18 setContentView(R.layout.activity_main);
19 IV_main_setting = findViewById(R.id.IV_main_setting);
20 IV_main_setting.setOnClickListener(this);
21 }
22
23 @Override
24 public void onClick(View view) {
25 switch (view.getId()) {
26 case R.id.IV_main_setting:
27 MainSettingDialogFragment mainSettingDialogFragment = new MainSettingDialogFragment();
28 mainSettingDialogFragment.show(getSupportFragmentManager(),"mainSettingDialogFragment");
29 break;
30
31
32 }
33 }
34 }
MainSettingDialogFragment.java (不是Activity只是普通的java类)
1 package com.example.ourdiary.main;
2
3 import android.app.Dialog;
4 import android.graphics.Color;
5 import android.os.Bundle;
6 import android.util.Log;
7 import android.view.LayoutInflater;
8 import android.view.View;
9 import android.view.ViewGroup;
10 import android.widget.ImageView;
11 import android.widget.RelativeLayout;
12 import android.widget.Toast;
13
14 import androidx.annotation.ColorRes;
15 import androidx.annotation.NonNull;
16 import androidx.annotation.Nullable;
17 import androidx.appcompat.app.AppCompatDialogFragment;
18
19 import com.example.ourdiary.R;
20
21 public class MainSettingDialogFragment extends AppCompatDialogFragment implements View.OnClickListener{
22
23 private RelativeLayout RL_main_setting_dialog;
24 private ImageView IV_main_setting_add_topic,IV_main_setting_setting_page,
25 IV_main_setting_setting_security,IV_main_setting_backup,IV_main_setting_about;
26
27 public Dialog onCreateDialog(Bundle savedInstanceState) {
28 Dialog dialog = super.onCreateDialog(savedInstanceState);
29 return dialog;
30 }
31
32 @Nullable
33 @Override
34 public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
35
36 this.getDialog().setCanceledOnTouchOutside(true);
37 View rootView = inflater.inflate(R.layout.bottom_sheet_main_setting,container);
38
39 RL_main_setting_dialog = rootView.findViewById(R.id.RL_main_setting_dialog);
40 RL_main_setting_dialog.setBackgroundColor(Color.BLUE);
41 IV_main_setting_add_topic = rootView.findViewById(R.id.IV_main_setting_add_topic);
42 IV_main_setting_add_topic.setOnClickListener(this);
43 IV_main_setting_setting_page = rootView.findViewById(R.id.IV_main_setting_setting_page);
44 IV_main_setting_setting_page.setOnClickListener(this);
45 IV_main_setting_setting_security = rootView.findViewById(R.id.IV_main_setting_setting_security);
46 IV_main_setting_setting_security.setOnClickListener(this);
47 IV_main_setting_backup = rootView.findViewById(R.id.IV_main_setting_backup);
48 IV_main_setting_backup.setOnClickListener(this);
49 IV_main_setting_about = rootView.findViewById(R.id.IV_main_setting_about);
50 IV_main_setting_about.setOnClickListener(this);
51
52 return rootView;
53 }
54
55 @Override
56 public void onClick(View view) {
57 switch (view.getId()) {
58 case R.id.IV_main_setting_add_topic:
59 Log.d("MainSettingDFragment","成功点击第一个图标");
60 break;
61 case R.id.IV_main_setting_setting_page:
62 Log.d("MainSettingDFragment","成功点击第二个图标");
63 break;
64 case R.id.IV_main_setting_setting_security:
65 Log.d("MainSettingDFragment","成功点击第三个图标");
66 break;
67 case R.id.IV_main_setting_backup:
68 Log.d("MainSettingDFragment","成功点击第四个图标");
69 break;
70 case R.id.IV_main_setting_about:
71 Log.d("MainSettingDFragment","成功点击第五个图标");
72 break;
73 }
74 }
75 }
activity.xml
1 <?xml version="1.0" encoding="utf-8"?> 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent"> 5 6 <ImageView 7 android:id="@+id/IV_main_setting" 8 android:layout_width="wrap_content" 9 android:layout_height="wrap_content" 10 android:layout_alignParentRight="true" 11 android:layout_alignParentBottom="true" 12 android:layout_centerVertical="true" 13 android:src="@drawable/iv_main_setting"/> 14 15 </RelativeLayout>
bottom_sheet_main_setting.xml
1 <?xml version="1.0" encoding="utf-8"?> 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:id="@+id/RL_main_setting_dialog" 4 android:layout_width="match_parent" 5 android:layout_height="70dp"> 6 7 <ScrollView 8 android:layout_width="match_parent" 9 android:layout_height="70dp"> 10 11 <LinearLayout 12 android:layout_width="match_parent" 13 android:layout_height="match_parent" 14 android:layout_gravity="center" 15 android:gravity="center" 16 android:orientation="horizontal"> 17 18 <ImageView 19 android:id="@+id/IV_main_setting_add_topic" 20 android:layout_width="wrap_content" 21 android:layout_height="wrap_content" 22 android:layout_gravity="center_vertical" 23 android:src="@drawable/iv_main_setting_add_topic"/> 24 25 <ImageView 26 android:id="@+id/IV_main_setting_setting_page" 27 android:layout_width="wrap_content" 28 android:layout_height="wrap_content" 29 android:layout_gravity="center_vertical" 30 android:layout_marginLeft="20dp" 31 android:src="@drawable/iv_main_setting_setting_page"/> 32 33 <ImageView 34 android:id="@+id/IV_main_setting_setting_security" 35 android:layout_width="wrap_content" 36 android:layout_height="wrap_content" 37 android:layout_gravity="center_vertical" 38 android:layout_marginLeft="20dp" 39 android:src="@drawable/iv_main_setting_setting_security"/> 40 41 <ImageView 42 android:id="@+id/IV_main_setting_backup" 43 android:layout_width="wrap_content" 44 android:layout_height="wrap_content" 45 android:layout_gravity="center_vertical" 46 android:layout_marginLeft="20dp" 47 android:src="@drawable/iv_main_setting_backup"/> 48 49 <ImageView 50 android:id="@+id/IV_main_setting_about" 51 android:layout_width="wrap_content" 52 android:layout_height="wrap_content" 53 android:layout_gravity="center_vertical" 54 android:layout_marginLeft="20dp" 55 android:src="@drawable/iv_main_setting_about"/> 56 57 </LinearLayout> 58 59 </ScrollView> 60 61 </RelativeLayout>
最后在LogCat上看点击信息，设置LogCat的博客可以看https://blog.csdn.net/weixin_42950079/article/details/83544064。
2021-03-16 23:23:37