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我和我的朋友正在为我们的课程项目制作Android应用程序。我们正在制作和应用标签。我们想知道是否有一种方法可以为选项卡使用一个xml文件，并且如果我们可以直接从java代码添加图片，或者我们需要为每个单独的选项卡创建一个xml文件。如果我们这样做，我们将如何保持所有选项卡的相同格式。如何从java代码添加图像到Android应用程序
我提供的代码是我们在其中附加了一些图片的main.xml。 tab.xml是我们格式化选项卡的xml布局。 SalesExecutiveDashboard.java是调用其他选项卡活动的主要活动。最后HomeTab.java是我们标签代码上的例子。
感谢所有帮助提供
main.xml中
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android">
<TextView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_margin="1dp"
android:text="@string/overall_sales"
android:id="@+id/pieChartView"/>
<ImageView
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:id="@+id/pie_chart"
android:src="@drawable/piechartsmall"/>
</LinearLayout>
tab.xml
<?xml version="1.0" encoding="UTF-8"?>
<TabHost
android:id="@android:id/tabhost"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<LinearLayout android:id="@+id/LinearLayout01"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:orientation="vertical">
<HorizontalScrollView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:scrollbars="none"
android:fillViewport="true">
<TabWidget android:id="@android:id/tabs"
android:layout_height="40dp"
android:layout_width="wrap_content"
android:layout_gravity="bottom"
android:gravity="bottom">
</TabWidget>
</HorizontalScrollView>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
</FrameLayout>
</LinearLayout>
</ScrollView>
</TabHost>
SaleExecutiveDashboard.java
package com.androidpeople.tab;
import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
public class SalesExecutiveDashboard extends TabActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tab);
/* TabHost will have Tabs */
//TabHost tabHost = (TabHost)findViewById(android.R.id.tabhost);
TabHost tabHost=getTabHost();
/* TabSpec used to create a new tab.
* By using TabSpec only we can able to setContent to the tab.
* By using TabSpec setIndicator() we can set name to tab. */
/* tid1 is firstTabSpec Id. Its used to access outside. */
TabSpec HomeTabSpec = tabHost.newTabSpec("Tab1");
TabSpec RevExpTabSpec = tabHost.newTabSpec("Tab2");
TabSpec AccountTabSpec = tabHost.newTabSpec("Tab3");
TabSpec DistroTabSpec = tabHost.newTabSpec("Tab4");
TabSpec SBPTabSpec = tabHost.newTabSpec("Tab5");
TabSpec AlertTabSpec = tabHost.newTabSpec("Tab6");
/* TabSpec setIndicator() is used to set name for the tab. */
/* TabSpec setContent() is used to set content for a particular tab. */
HomeTabSpec.setIndicator(" Home ").setContent(new Intent(this,HomeTab.class));
RevExpTabSpec.setIndicator(" Rev/Exp ").setContent(new Intent(this,RevExpTab.class));
AccountTabSpec.setIndicator(" Accounts ").setContent(new Intent(this,AccountsTab.class));
DistroTabSpec.setIndicator(" Distribution ").setContent(new Intent(this,DistroTab.class));
SBPTabSpec.setIndicator(" Sales by Product ").setContent(new Intent(this,SBPTab.class));
AlertTabSpec.setIndicator(" Alerts ").setContent(new Intent(this,AlertTab.class));
/* Add tabSpec to the TabHost to display. */
tabHost.addTab(HomeTabSpec);
tabHost.addTab(RevExpTabSpec);
tabHost.addTab(AccountTabSpec);
tabHost.addTab(DistroTabSpec);
tabHost.addTab(SBPTabSpec);
tabHost.addTab(AlertTabSpec);
}
}
HomeTab.java
package com.androidpeople.tab;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.os.Bundle;
import android.widget.ImageView;
public class HomeTab extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/* First Tab Content */
ImageView image = (ImageView) findViewById(R.id.pie_chart);
//TextView textView = new TextView(this);
//textView.setText("This is the Home Tab");
//setContentView(textView);
setContentView(R.layout.main);
}
}