最近遇到一个功能模块化管理APP, 需要根据不同的业务动态替换应用图标和启动页,搜了大量资料,总结用”别名”activity-alias标签比较实用 简单
直接上代码
布局代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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=".Main18Activity">
<Button
android:id="@+id/a1"
android:text="北京"
android:onClick="monClickq"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</Button>
<Button
android:text="上海"
android:id="@+id/a2"
android:onClick="monClickw"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</Button>
<Button
android:text="广东"
android:id="@+id/a3"
android:onClick="monClicke"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</Button>
</LinearLayout>
AndroidManifest.xml 代码
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myapplication">
<application
android:name=".HuodeApplication"
android:allowBackup="true"
android:icon="@mipmap/ss"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity-alias
android:name=".Main2Activity"
android:enabled="false"
android:icon="@mipmap/ic_launcher_round"
android:label="北京"
android:targetActivity=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity-alias>
<activity-alias
android:name=".Main3Activity"
android:enabled="false"
android:icon="@mipmap/qa_launcher"
android:label="上海"
android:targetActivity=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity-alias>
</application>
</manifest>
MainActivity 代码
public class Main18Activity extends AppCompatActivity {
private ComponentName mComponentName1;
private ComponentName mComponentName2;
private ComponentName mComponentNameDefault3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main18);
String packageName = getPackageName();
mComponentName1 = new ComponentName(this, packageName + ".MainActivity");
mComponentName2 = new ComponentName(this, packageName + ".Main2Activity");
mComponentNameDefault3 = new ComponentName(this, packageName + ".Main3Activity");
}
private void enableComponent(ComponentName componentName) {
getPackageManager().setComponentEnabledSetting(componentName,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
}
private void disableComponent(ComponentName componentName) {
getPackageManager().setComponentEnabledSetting(componentName,
PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
}
public void monClick(View view) {
enableComponent(mComponentName1);
disableComponent(mComponentName2);
disableComponent(mComponentNameDefault3);
}
public void monClickq(View view) {
enableComponent(mComponentName1);
disableComponent(mComponentName2);
disableComponent(mComponentNameDefault3);
}
public void monClickw(View view) {
disableComponent(mComponentName1);
enableComponent(mComponentName2);
disableComponent(mComponentNameDefault3);
}
public void monClicke(View view) {
disableComponent(mComponentName1);
disableComponent(mComponentName2);
enableComponent(mComponentNameDefault3);
}
}
注意: AndroidManifest.xml android:enabled=”false” false表示只会显示一个图标 true表示显示同时存在
现在就可以根绝不同业务活动等需求调用不同的 启动页 APP名字 图标