Question

我试着运行我在android studio中创建的应用程序，编码没有错误，但应用程序强制关闭。

错误日志

01-14 03:49:32.389 8122-8122/com.kareem.kdevelop.listjualmobil E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering
01-14 03:49:33.159 8122-8122/com.kareem.kdevelop.listjualmobil E/AndroidRuntime: FATAL EXCEPTION: main
     Process: com.kareem.kdevelop.listjualmobil, PID: 8122
     java.lang.RuntimeException: Unable to start activity ComponentInfo{com.kareem.kdevelop.listjualmobil/com.kareem.kdevelop.listjualmobil.MainActivity}: java.lang.ArrayIndexOutOfBoundsException: length=3; index=3
         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2219)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2269)
         at android.app.ActivityThread.access$800(ActivityThread.java:135)
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
         at android.os.Handler.dispatchMessage(Handler.java:102)
         at android.os.Looper.loop(Looper.java:136)
         at android.app.ActivityThread.main(ActivityThread.java:5045)
         at java.lang.reflect.Method.invokeNative(Native Method)
         at java.lang.reflect.Method.invoke(Method.java:515)
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
         at dalvik.system.NativeStart.main(Native Method)
      Caused by: java.lang.ArrayIndexOutOfBoundsException: length=3; index=3
         at com.kareem.kdevelop.listjualmobil.MainActivity.onCreate(MainActivity.java:44)
         at android.app.Activity.performCreate(Activity.java:5231)
         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1104)
         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2163)
         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2269) 
         at android.app.ActivityThread.access$800(ActivityThread.java:135) 
         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
         at android.os.Handler.dispatchMessage(Handler.java:102) 
         at android.os.Looper.loop(Looper.java:136) 
         at android.app.ActivityThread.main(ActivityThread.java:5045) 
         at java.lang.reflect.Method.invokeNative(Native Method) 
         at java.lang.reflect.Method.invoke(Method.java:515) 
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
         at dalvik.system.NativeStart.main(Native Method)

MainActivity：

public class MainActivity extends AppCompatActivity {
String[][] data = new String[][]{
        {"Honda, Brio, 1.2L CKD S A/T, 2015",
                "http://imgcdn.rajamobil.com:8080/resize2/public/media/images/databasemobil/mobilbaru/color/Brio%20-%20Brilliant%20Sporty%20Blue%20Metallic.png?v=420","19 Juta", "Jakarta Selatan"},
        {"Honda, Jazz, RS 1.5 A/T, 2015",
                "http://imgcdn.rajamobil.com:8080/resize2/public/media/images/databasemobil/original/2016/12/15/S1V6xervpWJK8rWnOqhxSve86RCb7VxK.JPG?v=493.83983572895","19 Juta", "Jakarta Selatan"},
        {"Mazda, Mazda2, V 1.5 M/T, 2014",
                "http://imgcdn.rajamobil.com:8080/resize2/public/media/images/databasemobil/mobilbaru/color/mazda2-abutua.jpg?v=420", "Tangerang"},
        {"Honda, Jazz, A 1.5 M/T, 2015",
                "http://imgcdn.rajamobil.com:8080/resize2/public/media/images/databasemobil/original/2016/12/19/otxIMI39Mq7o6QROZ7GJr_sm-TkizvNz.jpg?v=526.36904761905","Rp. 207.500.000", "Jakarta Barat"},
        {"Mitsubishi, Outlander, Sport PX, 2015",
                "http://imgcdn.rajamobil.com:8080/resize2/public/media/images/databasemobil/original/2016/11/17/81y5XBNeCNUQ-wUvaB6q7eSYc7D3XGr8.JPG?v=492.82786885246","Call", "Tangerang"}
};

private ListView lvItem;
private ArrayList listItem;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    lvItem = (ListView)findViewById(R.id.lv_item);
    listItem = new ArrayList<>();

    MobilModel mobil = null;

    for (int i = 0; i < data.length; i++){
        mobil = new MobilModel();
        mobil.setTitle(data[i][0]);
        mobil.setImage(data[i][1]);
        mobil.setHarga(data[i][2]);
        mobil.setLokasi(data[i][3]);

        listItem.add(mobil);
    }

    MobilAdapter adapter = new MobilAdapter(MainActivity.this, listItem);
    lvItem.setAdapter(adapter);

    lvItem.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            MobilModel mbl = (MobilModel) listItem.get(position);

            Intent intent = new Intent(MainActivity.this, DetailMobilActivity.class);
            intent.putExtra(DetailMobilActivity.KEY_ITEM, mbl);
            startActivityForResult(intent, 0);
        }
    });

}

Answer 1

try { g.DrawLine(pen, x1 * eF, y1 * eF + yEx, x * eF, y2 * eF + yEx); } catch {} //Not usually a great idea to eat all exceptions, but for troubleshooting purposes this'll do只有三个元素，因此没有索引3。

Answer 2

您的问题中的错误与您问题的标题不符。

您的问题中的错误是：

java.lang.ArrayIndexOutOfBoundsException: length=3; index=3
         at com.kareem.kdevelop.listjualmobil.MainActivity.onCreate(MainActivity.java:44)

问题在于这一行：mobil.setLokasi(data[i][3]);。您的数组只有三个元素，索引为0,1和2.您需要在数组中添加第四个元素以获得索引3.

E / dalvikvm：找不到类'android.graphics.drawable.RippleDrawable'

2 个答案: