一开始应用看起来像'Header 1 Content 1; 标题 2 内容 2;标题 3 内容 3'。当您按下“Go to Google Maps”按钮时,此应用会打开并搜索“朝鲜”。当您返回时,应用程序变为'Header 1 Content 3; 标题 2 内容 3;标题 3 内容 3'(所有内容都是 3)!为什么?至少在 Android 4.0.4(华为荣耀官方)上发生。
如您所见,我在其中使用了带有 LinearLayout 的 ScrollView,并在其中添加了item.xml中描述的视图。
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.HelloWorld"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application android:label="@string/app_name" android:icon="@drawable/ic_launcher">
<activity android:name="MyActivity" android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>
我的活动.java
package com.example.HelloWorld;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MyActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
addBlock("Header1", "Content1");
addBlock("Header2", "Content2");
addBlock("Header3", "Content3");
}
public void openMaps(View view) {
String uri = "geo:0,0?q=North+Korea";
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(uri));
startActivity(intent);
}
private void addBlock(String header, String content) {
final LinearLayout linearLayout = (LinearLayout) findViewById(R.id.linearLayout);
final LayoutInflater factory = LayoutInflater.from(this);
final View view = factory.inflate(R.layout.item, null);
final TextView headerView = (TextView) view.findViewById(R.id.header);
final TextView contentView = (TextView) view.findViewById(R.id.content);
if (header.isEmpty()) {
headerView.setHeight(0);
}
headerView.setText(header);
contentView.setText(content);
linearLayout.addView(view);
}
}
主要的.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Go to Google Maps"
android:id="@+id/button" android:onClick="openMaps"/>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/scrollView">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" android:longClickable="false" android:id="@+id/linearLayout">
</LinearLayout>
</ScrollView>
</LinearLayout>
项目.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Header"
android:id="@+id/header" android:layout_gravity="left|center_vertical" android:textStyle="bold"
android:layout_marginLeft="5dp"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Content"
android:id="@+id/content" android:layout_gravity="left|center_vertical" android:layout_marginLeft="10dp"
android:textIsSelectable="true"/>
</LinearLayout>