flutter 预览文件 配置 Android的问题

1、首先报minsdk 版本过低 我这边使用的是16 改为了19
build.gradle 中改配置 minSdkVersion

代码

def flutterPluginVersion = 'managed'

apply plugin: 'com.android.application'

android {
    compileSdkVersion 30

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    defaultConfig {
        applicationId "com.example.bl_flutter_module.host"
        minSdkVersion 19
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"
       multiDexEnabled true
    }

    buildTypes {
        profile {
            initWith debug
        }
        release {
            // TODO: Add your own signing config for the release build.
            // Signing with the debug keys for now, so `flutter run --release` works.
            signingConfig signingConfigs.debug
        }
    }

}
buildDir = new File(rootProject.projectDir, "../build/host")
dependencies {
    implementation project(':flutter')
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation "com.android.support:multidex:1.0.3"
}

2、接着 就报 错误

/Users/apple/MyFlutterPod/bl_flutter_module/.android/app/src/main/AndroidManifest.xml:12:9-42 Error:
    Attribute application@label value=(bl_flutter_module) from AndroidManifest.xml:12:9-42
    is also present at [com.wuhenzhizao:titlebar:1.2.0] AndroidManifest.xml:13:9-41 value=(@string/app_name).
    Suggestion: add 'tools:replace="android:label"' to <application> element at AndroidManifest.xml:11:5-38:19 to override.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugMainManifest'.
> Manifest merger failed : Attribute application@label value=(bl_flutter_module) from AndroidManifest.xml:12:9-42
    is also present at [com.wuhenzhizao:titlebar:1.2.0] AndroidManifest.xml:13:9-41 value=(@string/app_name).
    Suggestion: add 'tools:replace="android:label"' to <application> element at AndroidManifest.xml:11:5-38:19 to override.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 24s
Exception: Gradle task assembleDebug failed with exit code 1

按照提示：
再AndroidMainifest.xml文件中添加代码
标签manifest 中加入 xmlns:tools="http://schemas.android.com/tools"
标签application中加入 tools:replace="android:label"

这样子我的项目可以运行了