android.view.InflateException: 二进制XML文件第7行:解析类错误
android.view.InflateException: 二进制XML文件第7行:解析类错误
我在尝试运行我的项目时遇到了错误信息。我想要创建一个适用于Android的井字棋游戏,我使用下面的自定义视图创建了井字棋棋盘:
package org.me.TicTacToe.ui; import android.content.Context; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Paint.Style; import android.view.MotionEvent; import android.view.View; public class TicTacToeBoard extends View { private Tile[][] tile = null; //用于创建井字棋棋盘方格的抽象类 int boardWidth = 3; //这意味着井字棋棋盘由3x3个方格组成 private int width; private int height; private Paint brush; public TicTacToeBoard(Context context) { super(context); brush = new Paint(); this.brush.setARGB(255, 0, 0, 0); this.brush.setAntiAlias(true); this.brush.setStyle(Style.STROKE); this.brush.setStrokeWidth(5); width = this.getWidth(); height = this.getHeight(); initBoard(); } @Override protected void onDraw(Canvas canvas) { for (int i = 0; i < tile.length; i++) { for (int j = 0; j < tile[0].length; j++) { tile[i][j].draw(canvas, getResources(), j, i, (this.getWidth() + 3) / tile.length, this.getHeight() / tile[0].length); } } int xs = this.getWidth() / boardWidth; int ys = this.getHeight() / boardWidth; for (int i = 0; i <= boardWidth; i++) { canvas.drawLine(xs * i, 0, xs * i, this.getHeight(), brush); } for (int i = 0; i <= boardWidth; i++) { canvas.drawLine(0, ys * i, this.getWidth(), ys * i, brush); } super.onDraw(canvas); } public void initBoard(){ tile = new Tile[boardWidth][boardWidth]; int xss = width / boardWidth; int yss = height / boardWidth; for (int row = 0; row < boardWidth; row++) { for (int colmn = 0; colmn < boardWidth; colmn++) { tile[row][colmn] = new TileEmpty(xss * colmn, row * yss); // TileEmpty是Tile的子类,表示井字棋中的空方格 } } } }
接下来,我将它放入基于XML的活动布局中,如下所示:
所以我在Eclipse的LogCat窗口中得到了致命异常错误:
AndroidRuntime(329): java.lang.RuntimeException: Unable to start activity ComponentInfo{org.me.TicTacToe/org.me.TicTacToe.ui.TicTacToeActivity}: android.view.InflateException: Binary XML file line #7: Error inflating class org.me.TicTacToe.ui.TicTacToeBoard
如何修复它?
完整的Logcat行:
02-12 10:22:31.989: D/AndroidRuntime(329): Shutting down VM 02-12 10:22:31.989: W/dalvikvm(329): threadid=1: thread exiting with uncaught exception (group=0x40015560) 02-12 10:22:32.008: E/AndroidRuntime(329): FATAL EXCEPTION: main 02-12 10:22:32.008: E/AndroidRuntime(329): java.lang.RuntimeException: Unable to start activity ComponentInfo{org.me.TicTacToe/org.rme.TicTacToe.ui.TicTacToeActivity}: android.view.InflateException: Binary XML file line #18: Error inflating class org.me.TicTacToe.ui.TicTacToeBoard 02-12 10:22:32.008: E/AndroidRuntime(329): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.os.Handler.dispatchMessage(Handler.java:99) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.os.Looper.loop(Looper.java:123) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.app.ActivityThread.main(ActivityThread.java:3683) 02-12 10:22:32.008: E/AndroidRuntime(329): at java.lang.reflect.Method.invokeNative(Native Method) 02-12 10:22:32.008: E/AndroidRuntime(329): at java.lang.reflect.Method.invoke(Method.java:507) 02-12 10:22:32.008: E/AndroidRuntime(329): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 02-12 10:22:32.008: E/AndroidRuntime(329): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 02-12 10:22:32.008: E/AndroidRuntime(329): at dalvik.system.NativeStart.main(Native Method) 02-12 10:22:32.008: E/AndroidRuntime(329): Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class org.me.TicTacToe.ui.TicTacToeBoard 02-12 10:22:32.008: E/AndroidRuntime(329): at android.view.LayoutInflater.createView(LayoutInflater.java:508) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:570) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.view.LayoutInflater.rInflate(LayoutInflater.java:623) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.view.LayoutInflater.inflate(LayoutInflater.java:408) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 02-12 10:22:32.008: E/AndroidRuntime(329): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.app.Activity.setContentView(Activity.java:1657) 02-12 10:22:32.008: E/AndroidRuntime(329): at org.me.TicTacToe.ui.TicTacToeActivity.onCreate(TicTacToeActivity.java:24) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611) 02-12 10:22:32.008: E/AndroidRuntime(329): ... 11 more 02-12 10:22:32.008: E/AndroidRuntime(329): Caused by: java.lang.NoSuchMethodException: TicTacToeBoard(Context,AttributeSet) 02-12 10:22:32.008: E/AndroidRuntime(329): at java.lang.Class.getMatchingConstructor(Class.java:643) 02-12 10:22:32.008: E/AndroidRuntime(329): at java.lang.Class.getConstructor(Class.java:472) 02-12 10:22:32.008: E/AndroidRuntime(329): at android.view.LayoutInflater.createView(LayoutInflater.java:480) 02-12 10:22:32.008: E/AndroidRuntime(329): ... 21 more
文章标题:解决Android中出现的错误类充气异常问题
在Android开发过程中,有时候会遇到一个名为"android.view.InflateException: Binary XML file line #7: Error inflating class"的错误。这个错误通常是由于缺少构造函数导致的。我们可以通过以下步骤解决这个问题。
首先,根据LogCat中的提示信息,我们可以看到错误的具体原因是"Caused by: java.lang.NoSuchMethodException: TicTacToeBoard(Context,AttributeSet)"。这意味着在TicTacToeBoard类中找不到带有(Context, AttributeSet)参数的构造函数。
根据这个原因,我们需要在TicTacToeBoard类中添加一个构造函数,参数为(Context, AttributeSet)。这样可以解决缺少构造函数的问题,从而解决错误类充气异常。
以下是添加构造函数的示例代码:
public TicTacToeBoard(Context context, AttributeSet attrs) { super(context, attrs); // 这里可以添加其他需要的代码 }
通过添加这个构造函数,我们可以确保在充气TicTacToeBoard类时能够正确初始化实例,并解决错误类充气异常问题。
最后,我们可以看到一些开发者在回答问题时表示,添加构造函数的方法确实解决了他们的问题,结束了长达两天的头疼。因此,我们可以确认这个解决方法的有效性。
,当在Android开发中遇到"android.view.InflateException: Binary XML file line #7: Error inflating class"错误时,可以通过添加缺少的构造函数来解决问题。这个错误通常是由于缺少构造函数导致的,通过添加构造函数可以正确初始化实例,从而解决错误类充气异常。希望这篇文章对解决这个问题有所帮助。