java 安卓应用程序崩溃，列表视图未显示
每次我尝试运行应用程序时，列表视图位于崩溃位置，或者当我使其工作时，列表视图不会显示。我尝试更改列表视图的位置，即在全屏内容下的第一个帧布局之后和在帧布局全屏内容控件之后，仍然无法使其工作
下面是活动视图xml
<FrameLayout xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
xmlns:tools="http://schemas.安卓.com/tools"
安卓:layout_width="match_parent"
安卓:layout_height="match_parent"
安卓:background="#0099cc"
tools:context=".ActiveCheatsView" >
<TextView
安卓:id="@+id/fullscreen_content"
安卓:layout_width="match_parent"
安卓:layout_height="match_parent"
安卓:gravity="center"
安卓:keepScreenOn="true"
安卓:text="@string/ActiveCheats"
安卓:textColor="#000000"
安卓:textSize="50sp"
安卓:textStyle="bold" />
<!--
This FrameLayout insets its children based on system windows using
安卓:fitsSystemWindows.
-->
<ListView
安卓:id="@+id/Games"
安卓:layout_width="fill_parent"
安卓:layout_height="410dp" >
</ListView>
<FrameLayout
安卓:layout_width="match_parent"
安卓:layout_height="match_parent"
安卓:fitsSystemWindows="true" >
<LinearLayout
安卓:id="@+id/fullscreen_content_controls"
style="?buttonBarStyle"
安卓:layout_width="match_parent"
安卓:layout_height="wrap_content"
安卓:layout_gravity="bottom|center_horizontal"
安卓:background="@color/black_overlay"
安卓:orientation="horizontal"
tools:ignore="UselessParent" >
<Button
安卓:id="@+id/Button01"
style="?buttonBarButtonStyle"
安卓:layout_width="0dp"
安卓:layout_height="wrap_content"
安卓:layout_weight="1"
安卓:text="@string/Search" />
</LinearLayout>
</FrameLayout>
这里是java视图
package com.example.activecheats;
import com.example.activecheats.util.SystemUiHider;
import 安卓.annotation.TargetApi;
import 安卓.app.Activity;
import 安卓.os.Build;
import 安卓.os.Bundle;
import 安卓.os.Handler;
import 安卓.view.MotionEvent;
import 安卓.view.View;
import 安卓.widget.ListView;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
/**
* An example full-screen activity that shows and hides the system UI (i.e.
* status bar and navigation/system bar) with user interaction.
*
* @see SystemUiHider
*/
public class ActiveCheatsView extends Activity {
/**
* Whether or not the system UI should be auto-hidden after
* {@link #AUTO_HIDE_DELAY_MILLIS} milliseconds.
*/
private static final boolean AUTO_HIDE = true;
/**
* If {@link #AUTO_HIDE} is set, the number of milliseconds to wait after
* user interaction before hiding the system UI.
*/
private static final int AUTO_HIDE_DELAY_MILLIS = 3000;
/**
* If set, will toggle the system UI visibility upon interaction. Otherwise,
* will show the system UI visibility upon interaction.
*/
private static final boolean TOGGLE_ON_CLICK = true;
/**
* The flags to pass to {@link SystemUiHider#getInstance}.
*/
private static final int HIDER_FLAGS = SystemUiHider.FLAG_HIDE_NAVIGATION;
/**
* The instance of the {@link SystemUiHider} for this activity.
*/
private SystemUiHider mSystemUiHider;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_active_cheats_view);
final View controlsView = findViewById(R.id.fullscreen_content_controls);
final View contentView = findViewById(R.id.fullscreen_content);
// Set up an instance of SystemUiHider to control the system UI for
// this activity.
mSystemUiHider = SystemUiHider.getInstance(this, contentView,
HIDER_FLAGS);
mSystemUiHider.setup();
mSystemUiHider
.setOnVisibilityChangeListener(new SystemUiHider.OnVisibilityChangeListener() {
// Cached values.
int mControlsHeight;
int mShortAnimTime;
@Override
@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
public void onVisibilityChange(boolean visible) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
// If the ViewPropertyAnimator API is available
// (Honeycomb MR2 and later), use it to animate the
// in-layout UI controls at the bottom of the
// screen.
if (mControlsHeight == 0) {
mControlsHeight = controlsView.getHeight();
}
if (mShortAnimTime == 0) {
mShortAnimTime = getResources().getInteger(
安卓.R.integer.config_shortAnimTime);
}
controlsView
.animate()
.translationY(visible ? 0 : mControlsHeight)
.setDuration(mShortAnimTime);
} else {
// If the ViewPropertyAnimator APIs aren't
// available, simply show or hide the in-layout UI
// controls.
controlsView.setVisibility(visible ? View.VISIBLE
: View.GONE);
}
if (visible && AUTO_HIDE) {
// Schedule a hide().
delayedHide(AUTO_HIDE_DELAY_MILLIS);
}
}
});
// Set up the user interaction to manually show or hide the system UI.
contentView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (TOGGLE_ON_CLICK) {
mSystemUiHider.toggle();
} else {
mSystemUiHider.show();
}
}
});
// Upon interacting with UI controls, delay any scheduled hide()
// operations to prevent the jarring behavior of controls going away
// while interacting with the UI.
findViewById(R.id.Button01).setOnTouchListener(
mDelayHideTouchListener);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Trigger the initial hide() shortly after the activity has been
// created, to briefly hint to the user that UI controls
// are available.
delayedHide(100);
}
/**
* Touch listener to use for in-layout UI controls to delay hiding the
* system UI. This is to prevent the jarring behavior of controls going away
* while interacting with activity UI.
*/
View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
if (AUTO_HIDE) {
delayedHide(AUTO_HIDE_DELAY_MILLIS);
}
return false;
}
};
Handler mHideHandler = new Handler();
Runnable mHideRunnable = new Runnable() {
@Override
public void run() {
mSystemUiHider.hide();
}
};
/**
* Schedules a call to hide() in [delay] milliseconds, canceling any
* previously scheduled calls.
*/
private void delayedHide(int delayMillis) {
mHideHandler.removeCallbacks(mHideRunnable);
mHideHandler.postDelayed(mHideRunnable, delayMillis);
}
private List<Games> gamesList= new ArrayList<Games>();
private List<Games> gamesList;
/** Called when the activity is first created. */
public void onCreate1(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Set the View layer
setContentView(R.layout.activity_active_cheats_view);
setTitle("ActiveCheats");
// Create Parser for games.xml
GamesParser GamesParser = new GamesParser();
InputStream inputStream = getResources().openRawResource(
R.layout.games);
// Parse the inputstream
GamesParser.parse(inputStream);
setGamesList(com.example.activecheats.GamesParser.getList());
// Create a customized ArrayAdapter
GamesArrayAdapter adapter = new GamesArrayAdapter(
getApplicationContext(), R.layout.games_listitem, countryList);
// Get reference to ListView holder
ListView lv = (ListView) this.findViewById(R.id.Games);
// Set the ListView adapter
lv.setAdapter(adapter);
}
public List<Games> getGamesList() {
return gamesList;
}
public void setGamesList(List<Games> gamesList) {
this.gamesList = gamesList;
}
}
# 1 楼答案
在xml文件中尝试此操作，然后在活动中扩展ListActivity