自定义视图致命异常

时间：2014-06-07 16:09:07

标签： android android-layout android-view android-custom-view

我遇到了一个很大的麻烦，一起购买一个简单的应用程序（我在Android开发中也是新手）

问题是，我有4项活动。第一个是MainActivity，其上有一些按钮可用于下一个活动。

在此活动中，一个人需要摇动他的移动设备才能进入下一个活动。

在这项活动中，将自动播放一个制作比萨底部的家伙视频。现在我已经编程了，就像视频已经退出播放一样。有人必须进入下一个活动（在setOnCompletionListener中自动实现。

现在我已经查看了许多关于自定义视图异常的Stack Overflow问题，该问题也有错误，注意到自定义添加的View包名称。

我已经花了5个小时摔跤这个让我的App Forced Down的错误，所以我的问题是你们是否可以帮我看看这个问题的来源。

被修改 忘了我的错误记录（愚蠢的我-_-）

06-07 17:55:54.391: E/AndroidRuntime(22116): FATAL EXCEPTION: main
06-07 17:55:54.391: E/AndroidRuntime(22116): java.lang.RuntimeException: Unable to start activity ComponentInfo{nl.jaydijkstra.pizzabuilder/nl.jaydijkstra.pizzabuilder.SauceActivity}: android.view.InflateException: Binary XML file line #12: Error inflating class nl.jaydijkstra.pizzabuilder.MyGraphicsView
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2308)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2362)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.app.ActivityThread.access$700(ActivityThread.java:168)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1329)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.os.Handler.dispatchMessage(Handler.java:99)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.os.Looper.loop(Looper.java:137)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.app.ActivityThread.main(ActivityThread.java:5493)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at java.lang.reflect.Method.invokeNative(Native Method)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at java.lang.reflect.Method.invoke(Method.java:525)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1209)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1025)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at dalvik.system.NativeStart.main(Native Method)
06-07 17:55:54.391: E/AndroidRuntime(22116): Caused by: android.view.InflateException: Binary XML file line #12: Error inflating class nl.jaydijkstra.pizzabuilder.MyGraphicsView
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.view.LayoutInflater.createView(LayoutInflater.java:626)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:702)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:761)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.view.LayoutInflater.inflate(LayoutInflater.java:498)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.view.LayoutInflater.inflate(LayoutInflater.java:398)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.view.LayoutInflater.inflate(LayoutInflater.java:354)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:361)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.app.Activity.setContentView(Activity.java:1956)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at nl.jaydijkstra.pizzabuilder.SauceActivity.onCreate(SauceActivity.java:18)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.app.Activity.performCreate(Activity.java:5372)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1104)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2270)
06-07 17:55:54.391: E/AndroidRuntime(22116):    ... 11 more
06-07 17:55:54.391: E/AndroidRuntime(22116): Caused by: java.lang.reflect.InvocationTargetException
06-07 17:55:54.391: E/AndroidRuntime(22116):    at java.lang.reflect.Constructor.constructNative(Native Method)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.view.LayoutInflater.createView(LayoutInflater.java:600)
06-07 17:55:54.391: E/AndroidRuntime(22116):    ... 22 more
06-07 17:55:54.391: E/AndroidRuntime(22116): Caused by: java.lang.OutOfMemoryError
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:596)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:444)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:832)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.content.res.Resources.loadDrawable(Resources.java:2988)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.content.res.TypedArray.getDrawable(TypedArray.java:602)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.view.View.<init>(View.java:3563)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at android.view.View.<init>(View.java:3492)
06-07 17:55:54.391: E/AndroidRuntime(22116):    at nl.jaydijkstra.pizzabuilder.MyGraphicsView.<init>(MyGraphicsView.java:28)
06-07 17:55:54.391: E/AndroidRuntime(22116):    ... 25 more

Sauce Activity.java 

package nl.jaydijkstra.pizzabuilder;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageButton;
import android.widget.LinearLayout;

public class SauceActivity extends Activity {

private MyGraphicsView drawView;
private ImageButton currPaint;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sauce);

        drawView = (MyGraphicsView)findViewById(R.id.drawing);
        LinearLayout paintLayout = (LinearLayout)findViewById(R.id.paint_colors);
        currPaint = (ImageButton)paintLayout.getChildAt(0);
        currPaint.setImageDrawable(getResources().getDrawable(R.drawable.sauce_pressed));
    }

    public void paintClicked(View view){
        //What color will be chosen?
        if(view!= currPaint){
        ImageButton imgView = (ImageButton)view;
        String color = view.getTag().toString();

        drawView.setColor(color);

        imgView.setImageDrawable(getResources().getDrawable(R.drawable.sauce_pressed));
        currPaint.setImageDrawable(getResources().getDrawable(R.drawable.sauce));
        currPaint=(ImageButton)view;
        }
        }
    }

activity_sauce.xml 

 <LinearLayout 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"
    android:background="#FFCCCCCC"
    android:orientation="vertical"
    tools:context="${packageName}.${activityClass}" >


    <!-- Custom View -->

    <nl.jaydijkstra.pizzabuilder.MyGraphicsView
        android:id="@+id/drawing"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_marginBottom="3dp"
        android:layout_marginLeft="5dp"
        android:layout_marginRight="5dp"
        android:layout_marginTop="3dp"
        android:layout_weight="1"
        android:background="@drawable/bottom_unbaked" />

    <!-- Color Pallette Holder -->

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="vertical" >

        <!--What Color To Choose? -->

        <LinearLayout
            android:id="@+id/paint_colors"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >

            <ImageButton
                android:layout_width="@dimen/large_brush"
                android:layout_height="@dimen/large_brush"
                android:layout_margin="2dp"
                android:background="#FF660000"
                android:contentDescription="@string/paint"
                android:onClick="paintClicked"
                android:src="@drawable/sauce"
                android:tag="#FF660000" />

            <ImageButton
                android:layout_width="@dimen/large_brush"
                android:layout_height="@dimen/large_brush"
                android:layout_margin="2dp"
                android:background="#FFFF0000"
                android:contentDescription="@string/paint"
                android:onClick="paintClicked"
                android:src="@drawable/sauce"
                android:tag="#FFFF0000" />

            <ImageButton
                android:layout_width="@dimen/large_brush"
                android:layout_height="@dimen/large_brush"
                android:layout_margin="2dp"
                android:background="#FFFF6600"
                android:contentDescription="@string/paint"
                android:onClick="paintClicked"
                android:src="@drawable/sauce"
                android:tag="#FFFF6600" />

            <ImageButton
                android:layout_width="@dimen/large_brush"
                android:layout_height="@dimen/large_brush"
                android:layout_margin="2dp"
                android:background="#FFFFCC00"
                android:contentDescription="@string/paint"
                android:onClick="paintClicked"
                android:src="@drawable/sauce"
                android:tag="#FFFFCC00" />

            <ImageButton
                android:layout_width="@dimen/large_brush"
                android:layout_height="@dimen/large_brush"
                android:layout_margin="2dp"
                android:background="#FF009900"
                android:contentDescription="@string/paint"
                android:onClick="paintClicked"
                android:src="@drawable/sauce"
                android:tag="#FF009900" />

            <ImageButton
                android:layout_width="@dimen/large_brush"
                android:layout_height="@dimen/large_brush"
                android:layout_margin="2dp"
                android:background="#FF009999"
                android:contentDescription="@string/paint"
                android:onClick="paintClicked"
                android:src="@drawable/sauce"
                android:tag="#FF009999" />
        </LinearLayout>


    </LinearLayout>

</LinearLayout>

我的自定义视图 

package nl.jaydijkstra.pizzabuilder;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;

public class MyGraphicsView extends View{

    private Path drawPath;

    private Paint drawPaint, canvasPaint;

    private int paintColor = 0xFF660000;

    private Canvas drawCanvas;

    private Bitmap canvasBitmap;

    public MyGraphicsView(Context context, AttributeSet attr) {
        super(context, attr);
        setupDrawing();
        // TODO Auto-generated constructor stub
    }

    private void setupDrawing(){
        drawPath = new Path();
        drawPaint = new Paint();

        drawPaint.setColor(paintColor);

        drawPaint.setAntiAlias(true);
        drawPaint.setStrokeWidth(20);
        drawPaint.setStyle(Paint.Style.STROKE);
        drawPaint.setStrokeJoin(Paint.Join.ROUND);
        drawPaint.setStrokeCap(Paint.Cap.ROUND);

        canvasPaint = new Paint(Paint.DITHER_FLAG);
    }

    @Override
        protected void onSizeChanged(int w, int h, int oldw, int oldh) {
            // TODO Auto-generated method stub
            super.onSizeChanged(w, h, oldw, oldh);

            canvasBitmap = Bitmap.createBitmap(w,h,Bitmap.Config.ARGB_8888);
            drawCanvas = new Canvas (canvasBitmap);
        }
    @Override
        protected void onDraw(Canvas canvas) {
            canvas.drawBitmap(canvasBitmap, 0, 0, canvasPaint);
            canvas.drawPath(drawPath, drawPaint);

        }
    @Override
        public boolean onTouchEvent(MotionEvent event) {

            float touchX = event.getX();
            float touchY = event.getY();

            switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                drawPath.moveTo(touchX,  touchY);
                break;
            case MotionEvent.ACTION_MOVE:
                drawPath.lineTo(touchX, touchY);
                break;
            case MotionEvent.ACTION_UP:
                drawCanvas.drawPath(drawPath, drawPaint);
                drawPath.reset();
                break;

            default:
                return false;
            }
            invalidate();
            return true;
        }

       public void setColor(String newColor){
            invalidate();

            paintColor = Color.parseColor(newColor);
            drawPaint.setColor(paintColor);
        }


}

抱歉这篇长篇文章！最后我的：

Android ManiFest 

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="nl.jaydijkstra.pizzabuilder"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="18"
        android:targetSdkVersion="19" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="nl.jaydijkstra.pizzabuilder.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="nl.jaydijkstra.pizzabuilder.GameOverActivity"
            android:label="@string/title_activity_game_over" >
        </activity>
        <activity
            android:name="nl.jaydijkstra.pizzabuilder.PizzaActivity"
            android:label="@string/title_activity_pizza" >
        </activity>
        <activity
            android:name="nl.jaydijkstra.pizzabuilder.Prefs"
            android:label="@string/settings_title" >
        </activity>
        <activity
            android:name="nl.jaydijkstra.pizzabuilder.DoughActivity"
            android:label="@string/title_activity_dough" >
        </activity>
        <activity
            android:name="nl.jaydijkstra.pizzabuilder.SauceActivity"
            android:label="@string/title_activity_sauce" >
        </activity>
        <activity
            android:name="nl.jaydijkstra.pizzabuilder.ShakeActivity"
            android:label="@string/title_activity_shake" >
        </activity>
    </application>

</manifest>

我真的希望你们能帮帮我!!!

亲切的问候，

杰

1 个答案:

答案 0 :(得分：0)

当您为自定义视图充气时，问题出现在xml中。

android:background="@drawable/bottom_unbaked"

问题是图像bottom_unbaked太大而无法加载Android。加载图像时，应确保它们的大小适合应用程序需要。我的猜测是图像比视图中实际需要的大。查看Supporting Multiple Screens文档，了解如何提供相同图像的不同大小，以便可以扩展可以利用更大图像的设备。对于测试，使用Gimp等程序将图像缩小到应用程序中仍然看起来很好的最小尺寸。

相关问题
最新问题