對於Android開發來說很新穎,我需要知道如何以實用的方式更改我的片段中ListView的大小以覆蓋整個屏幕? match_parent,fill_parent不起作用。如何更改片段的大小?
我已經硬編碼的500dp
這裏價值觀是我的片段
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<ListView
android:id="@android:id/list"
android:layout_width="500dp"
android:layout_height="500dp"
android:divider="@null"
android:dividerHeight="0dp"
android:layout_marginTop="0dp">
</ListView>
</RelativeLayout>
,這裏是JAVA我的片段代碼:
import android.app.ListFragment;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.view.ViewGroup.LayoutParams;
import android.widget.LinearLayout;
import java.util.List;
public class MyFragment extends ListFragment {
List<data> flowers = new datadata().getdatas();
public MyFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
dataArrayAdapter adapter = new dataArrayAdapter(getActivity(),
R.layout.data_listitem,
flowers);
setListAdapter(adapter);
}
@Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.my_fragment, container, false);
return rootView;
}
}
這裏是我的主要活動類
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/myContainer"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scrollbarStyle="insideOverlay"
android:scrollbars="none"
android:fadeScrollbars="true"
android:fitsSystemWindows="true"
android:layout_gravity="top"
>
</ScrollView >
這是我的主要活動的Java代碼:
package mshirvan.example.com.netplex;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Fragment;
import android.content.Intent;
import android.media.Image;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.Toast;
import android.view.View.OnClickListener;
import data.row1;
public class MainActivity extends Activity {
public static float screenx = 0;
public static float screeny = 0;
public static int screenpixelx = 0;
public static int screenpixely = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ScreenUtility utility = new ScreenUtility(this);
screenx = utility.getWidth();
screeny = utility.getHeight();
screenpixelx = utility.getPixelWidth();
screenpixely = utility.getPixelHeight();
MyFragment frag = new MyFragment();
getFragmentManager().beginTransaction()
.add(R.id.myContainer, frag)
.commit();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
ScreenUtility utility = new ScreenUtility(this);
String output = "Width: " + utility.getWidth() + ", " +
"Height: " + utility.getHeight();
return true;
}
return super.onOptionsItemSelected(item);
}
}
請發佈您的活動代碼和佈局 – 2014-11-14 19:45:44
您是否在ScrollView中添加片段? 請編輯您的問題並在其中添加您的活動代碼。 – 2014-11-14 20:06:57