搭建框架

.gitignore

@@ -21,3 +21,12 @@
 
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

@@ -0,0 +1,28 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 26
+    defaultConfig {
+        applicationId "com.cleven.clchat.clchat"
+        minSdkVersion 15
+        targetSdkVersion 26
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:26.1.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}

app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/cleven/clchat/clchat/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.cleven.clchat.clchat;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.cleven.clchat.clchat", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.cleven.clchat.clchat">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".activity.SplashActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".activity.MainActivity"></activity>
+    </application>
+
+</manifest>

app/src/main/java/com/cleven/clchat/clchat/activity/MainActivity.java

@@ -0,0 +1,123 @@
+package com.cleven.clchat.clchat.activity;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.FragmentTransaction;
+import android.view.Window;
+import android.widget.FrameLayout;
+import android.widget.RadioGroup;
+
+import com.cleven.clchat.clchat.R;
+import com.cleven.clchat.clchat.base.CLBaseFragment;
+import com.cleven.clchat.clchat.fragment.CLContactFragment;
+import com.cleven.clchat.clchat.fragment.CLDiscoverFragment;
+import com.cleven.clchat.clchat.fragment.CLHomeFragment;
+import com.cleven.clchat.clchat.fragment.CLProfileFragment;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MainActivity extends FragmentActivity {
+
+    private FrameLayout frameLayout;
+    private RadioGroup radioGroup;
+
+    private int currentSelectIndex = 0;
+    /// 记录当前显示的fragment
+    private CLBaseFragment preFragment;
+    private List<CLBaseFragment> fragments;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        /// 取消标题
+        requestWindowFeature(Window.FEATURE_NO_TITLE);
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        initFragments();
+
+        findViews();
+
+    }
+
+    private void findViews() {
+        frameLayout = (FrameLayout)findViewById( R.id.frameLayout );
+        radioGroup = (RadioGroup)findViewById( R.id.radioGroup );
+        /// 设置监听事件
+        radioGroup.setOnCheckedChangeListener(new MyOnClickListener());
+        /// 默认选中第一个
+        radioGroup.check(R.id.rb_main_home);
+    }
+
+    private class MyOnClickListener implements RadioGroup.OnCheckedChangeListener {
+
+        @Override
+        public void onCheckedChanged(RadioGroup group, int checkedId) {
+            switch (checkedId){
+                case R.id.rb_main_home:
+                    currentSelectIndex = 0;
+                    break;
+                case R.id.rb_main_contact:
+                    currentSelectIndex = 1;
+                    break;
+                case R.id.rb_main_discover:
+                    currentSelectIndex = 2;
+                    break;
+                case R.id.rb_main_profile:
+                    currentSelectIndex = 3;
+                    break;
+            }
+            /// 获取Fragment
+            CLBaseFragment fragment = getFragment(currentSelectIndex);
+            /// 切换
+            switchFragment(preFragment,fragment);
+        }
+
+    }
+
+    /// 根据下标获取fragment
+    private CLBaseFragment getFragment(int index){
+        if (fragments != null && fragments.size() > 0){
+            return fragments.get(index);
+        }
+        return null;
+    }
+
+    /// 切换Fragment
+    private void switchFragment(Fragment fromFragment, CLBaseFragment nextFragment){
+        if (preFragment != nextFragment){
+            preFragment = nextFragment;
+            if (nextFragment != null){
+                /// 获取Fragment管理器
+                FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
+                // 判断nextFragment是否添加
+                if (!nextFragment.isAdded()){
+                    //隐藏当前Fragment
+                    if (fromFragment != null){
+                        transaction.hide(fromFragment);
+                    }
+                    // 添加下一个Fragment
+                    transaction.add(R.id.frameLayout,nextFragment).commit();
+                }else {
+                    //隐藏当前Fragment
+                    if (fromFragment != null){
+                        transaction.hide(fromFragment);
+                    }
+                    /// 如果已经添加过,直接显示
+                    transaction.show(nextFragment).commit();
+                }
+            }
+        }
+    }
+
+    private void initFragments() {
+        fragments = new ArrayList<>();
+        fragments.add(new CLHomeFragment());
+        fragments.add(new CLContactFragment());
+        fragments.add(new CLDiscoverFragment());
+        fragments.add(new CLProfileFragment());
+    }
+
+
+}

app/src/main/java/com/cleven/clchat/clchat/activity/SplashActivity.java

@@ -0,0 +1,61 @@
+package com.cleven.clchat.clchat.activity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.animation.AlphaAnimation;
+import android.view.animation.Animation;
+import android.view.animation.AnimationSet;
+import android.view.animation.ScaleAnimation;
+import android.widget.TextView;
+
+import com.cleven.clchat.clchat.R;
+
+public class SplashActivity extends AppCompatActivity {
+
+    private TextView tv_text;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_splash);
+
+        tv_text = (TextView) findViewById(R.id.tv_text);
+
+        ScaleAnimation scaleAnimation = new ScaleAnimation(0.5f, 1.0f, 0.5f, 1.0f);
+        scaleAnimation.setDuration(1500);
+        scaleAnimation.setFillAfter(true);
+
+        AlphaAnimation alphaAnimation = new AlphaAnimation(0.5f, 1.0f);
+        alphaAnimation.setFillAfter(true);
+        alphaAnimation.setDuration(1500);
+
+        AnimationSet set = new AnimationSet(this, null);
+        set.addAnimation(scaleAnimation);
+        set.addAnimation(alphaAnimation);
+        set.setDuration(1500);
+        set.setFillAfter(true);
+        tv_text.setAnimation(set);
+
+        set.setAnimationListener(new Animation.AnimationListener() {
+            @Override
+            public void onAnimationStart(Animation animation) {
+
+            }
+
+            @Override
+            public void onAnimationEnd(Animation animation) {
+                Intent intent = new Intent(SplashActivity.this,MainActivity.class);
+                startActivity(intent);
+
+                finish();
+            }
+
+            @Override
+            public void onAnimationRepeat(Animation animation) {
+
+            }
+        });
+
+    }
+}