ViewPager滑动

Moeyuuko · Apr 7, 2020 · ea0f568 · ea0f568
1 parent c0004c5
commit ea0f568
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Showing 14 changed files with 207 additions and 9 deletions.
diff --git a/app/build.gradle b/app/build.gradle
@@ -9,7 +9,7 @@ android {
         minSdkVersion 16
         targetSdkVersion 28
         versionCode 1
-        versionName "1.3"
+        versionName '1.4'
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
@@ -9,8 +9,13 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".Main5Activity" android:screenOrientation="portrait"></activity>
-        <activity android:name=".Main4Activity" android:screenOrientation="portrait"></activity>
+        <activity android:name=".ViewPagerActivity"></activity>
+        <activity
+            android:name=".Main5Activity"
+            android:screenOrientation="portrait" />
+        <activity
+            android:name=".Main4Activity"
+            android:screenOrientation="portrait" />
         <activity android:name=".Main3Activity" />
         <activity android:name=".Main2Activity" />
         <activity

diff --git a/app/src/main/java/com/example/helloandroid/MainActivity.java b/app/src/main/java/com/example/helloandroid/MainActivity.java
@@ -18,6 +18,7 @@ public class MainActivity extends AppCompatActivity {
     private Button button2;
     private Button button4;
     private Button button7;
+    private Button button9;
 
     private TextView textView;
     private int i;
@@ -31,6 +32,7 @@ protected void onCreate(Bundle savedInstanceState) {
         button2 = (Button)findViewById(R.id.button2);
         button4 = (Button)findViewById(R.id.button4);
         button7 = (Button)findViewById(R.id.button7);
+        button9 = (Button)findViewById(R.id.button9);
 
         textView = (TextView) findViewById(R.id.textView);//绑定组件
         final String[] data={"Hello world!","你好世界!","こんにちは世界！","안녕하세요 세상!",
@@ -54,7 +56,7 @@ public void onClick(View view) {
         button2.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                Log.i("新建窗口:", "2");
+                Log.i("新建窗口:", "Main2Activity");
                 Intent intent=new Intent(MainActivity.this,Main2Activity.class); //新建意图
 
                 startActivity(intent);
@@ -64,7 +66,7 @@ public void onClick(View view) {
         button4.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                Log.i("新建窗口:", "3");
+                Log.i("新建窗口:", "Main3Activity");
                 Intent intent=new Intent(MainActivity.this,Main3Activity.class); //新建意图
 
                 startActivity(intent);
@@ -74,12 +76,22 @@ public void onClick(View view) {
         button7.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                Log.i("新建窗口:", "4");
+                Log.i("新建窗口:", "Main4Activity");
                 Intent intent=new Intent(MainActivity.this,Main4Activity.class); //新建意图
 
                 startActivity(intent);
             }
         });
+
+        button9.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Log.i("新建窗口:", "ViewPagerActivity");
+                Intent intent=new Intent(MainActivity.this,ViewPagerActivity.class); //新建意图
+
+                startActivity(intent);
+            }
+        });
     }
 
 }
diff --git a/app/src/main/java/com/example/helloandroid/MyNewAdapter.java b/app/src/main/java/com/example/helloandroid/MyNewAdapter.java
@@ -0,0 +1,40 @@
+package com.example.helloandroid;
+
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.viewpager.widget.PagerAdapter;
+import androidx.viewpager.widget.ViewPager;
+
+import java.util.List;
+
+public class MyNewAdapter extends PagerAdapter {
+    List<View> views; //声明
+
+    public MyNewAdapter(List<View> views) { //构造方法 传入
+        this.views = views;
+    }
+
+    @Override
+    public int getCount() {
+        return views.size();
+    }
+
+    @Override
+    public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
+        return view==object;
+    }
+
+    @Override
+    public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
+        ((ViewPager)container).removeView(views.get(position));
+    }
+
+    @NonNull
+    @Override
+    public Object instantiateItem(@NonNull ViewGroup container, int position) {
+        ((ViewPager)container).addView(views.get(position));
+        return views.get(position);
+    }
+}
diff --git a/app/src/main/java/com/example/helloandroid/ViewPagerActivity.java b/app/src/main/java/com/example/helloandroid/ViewPagerActivity.java
@@ -0,0 +1,37 @@
+package com.example.helloandroid;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.viewpager.widget.ViewPager;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ViewPagerActivity extends AppCompatActivity {
+    private ViewPager viewPager;
+    private List<View> views;
+    private MyNewAdapter myNewAdapter; //重写 继承 ViewPagerAdapter
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_view_pager);
+
+        viewPager = findViewById(R.id.ViewPager_1);
+        views = new ArrayList<View>();
+        LayoutInflater inflater = LayoutInflater.from(getApplicationContext());
+
+        View view1 = inflater.inflate(R.layout.activity_view_pager_1, null);
+        View view2 = inflater.inflate(R.layout.activity_view_pager_2, null);
+        View view3 = inflater.inflate(R.layout.activity_view_pager_3, null);
+        views.add(view1);
+        views.add(view2);
+        views.add(view3);
+
+        myNewAdapter = new MyNewAdapter(views);
+        viewPager.setAdapter(myNewAdapter);
+    }
+}
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
@@ -77,11 +77,22 @@
         android:id="@+id/button7"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginTop="8dp"
+        android:layout_marginTop="5dp"
         android:text="活动的信息传递"
         android:textSize="18sp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/linearLayout" />
 
+    <Button
+        android:id="@+id/button9"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="5dp"
+        android:text="ViewPager滑动"
+        android:textSize="18sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button7" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/layout/activity_main4.xml b/app/src/main/res/layout/activity_main4.xml
@@ -23,7 +23,9 @@
         android:layout_height="45dp"
         android:ems="10"
         android:gravity="center"
+        android:hint="putExtra()的传递数据"
         android:inputType="textPersonName"
+        android:maxLength="15"
         android:text="putExtra()的传递数据"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
@@ -37,7 +39,9 @@
         android:layout_height="wrap_content"
         android:ems="10"
         android:gravity="center"
+        android:hint="Bundle对象的传递数据"
         android:inputType="textPersonName"
+        android:maxLength="15"
         android:text="Bundle对象的传递数据"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"

diff --git a/app/src/main/res/layout/activity_main5.xml b/app/src/main/res/layout/activity_main5.xml
@@ -77,7 +77,9 @@
         android:layout_height="wrap_content"
         android:ems="10"
         android:gravity="center"
+        android:hint="返回的数据"
         android:inputType="textPersonName"
+        android:maxLength="15"
         android:text="返回的数据"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"

diff --git a/app/src/main/res/layout/activity_view_pager.xml b/app/src/main/res/layout/activity_view_pager.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ViewPagerActivity">
+
+    <androidx.viewpager.widget.ViewPager
+        android:id="@+id/ViewPager_1"
+        android:layout_width="wrap_content"
+        android:layout_height="0dp"
+        android:layout_marginBottom="32dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="1.0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.0" />
+
+    <TextView
+        android:id="@+id/textView15"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/moeyuuko"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/ViewPager_1" />
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/layout/activity_view_pager_1.xml b/app/src/main/res/layout/activity_view_pager_1.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:id="@+id/textView14"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="ViewPager 第1界面"
+        android:textSize="24sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/layout/activity_view_pager_2.xml b/app/src/main/res/layout/activity_view_pager_2.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:id="@+id/textView13"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="ViewPager 第2界面"
+        android:textSize="24sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/layout/activity_view_pager_3.xml b/app/src/main/res/layout/activity_view_pager_3.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:id="@+id/textView11"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="ViewPager 第3界面"
+        android:textSize="24sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
@@ -1,4 +1,4 @@
 <resources>
-    <string name="app_name">helloAndroid</string>
+    <string name="app_name">HelloAndroid</string>
     <string name="moeyuuko">Moeyuuko</string>
 </resources>
diff --git a/build.gradle b/build.gradle
@@ -8,7 +8,7 @@ buildscript {
 
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.1'
+        classpath 'com.android.tools.build:gradle:3.6.2'
 
 
         // NOTE: Do not place your application dependencies here; they belong