1.4 返回按钮

tj

2025-04-15 0a730b84c41f44129bf5ecc112450d2edf4312c9

1.4 返回按钮

 app/src/main/java/com/example/firstapp/activity/AboutCompanyActivity.kt

@@ -3,6 +3,7 @@
import android.content.Intent
import android.net.Uri
import android.os.Bundle
import android.view.MenuItem
import androidx.activity.enableEdgeToEdge
import androidx.appcompat.app.AppCompatActivity
import androidx.core.view.ViewCompat
@@ -51,4 +52,16 @@

        }
    }

    override fun onOptionsItemSelected(item: MenuItem): Boolean {
        return when (item.itemId) {
            android.R.id.home -> {
                // 处理返回按钮的点击事件
                onBackPressed()
                true
            }
            else -> super.onOptionsItemSelected(item)
        }
    }

}

 app/src/main/res/layout/activity_about_company.xml

@@ -39,6 +39,7 @@
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:gravity="center"
            tools:ignore="MissingConstraints">
            <ImageView

 app/src/main/res/layout/activity_setting.xml

@@ -41,7 +41,7 @@
            android:gravity="center"
            android:orientation="vertical"
            android:background="#F9F9F9"
            android:layout_marginTop="1dp"
            android:layout_marginTop="10dp"
            >

            <TextView