android - OnClickListener 无法启动 Activity

Question

我有一个 Activity A，它在 TableRow 中实现了 3 个 Button 对象。每个按钮都有一个 OnClickListener 启动另一个 Activity 设置如下:

public class MainMenu extends AppCompatActivity {

private static final int RECOGNIZE_REQUEST_CODE = 100;
private static final int SEARCH_REQUEST_CODE = 200;
private static final int MAP_REQUEST_CODE = 300;

private Button recognize, search, viewMap;
private TableRow table;
private TextView welcome;


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

    recognize = (Button) findViewById(R.id.recognizeMenuButton);
    search = (Button) findViewById(R.id.searchMenuButton);
    viewMap = (Button) findViewById(R.id.mapMenuButton);
    table = (TableRow) findViewById(R.id.table);

    //Set onClickListener for recognize button
    recognize.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Log.d("Recognize listener", "Inside recognize listener onclick");
            Intent recognizeIntent = new Intent(MainMenu.this, RecognizeActivity.class);
            startActivity(recognizeIntent);
        }
    });

    search.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Log.d("Search", "Inside search listener onclick");
            Intent searchIntent = new Intent(MainMenu.this, SearchActivity.class);
            startActivity(searchIntent);
        }
    });

    viewMap.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Log.d("Map listener", "Inside map listener onclick");
            Intent mapIntent = new Intent(MainMenu.this, MapActivity.class);
            startActivity(mapIntent);
        }
    });
}

对应的layout文件是这样实现的:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main_menu"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="abon219.com.musicmappr.MainMenu">

    <TableRow
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:id="@+id/table"
        android:layout_marginTop="116dp"
        android:layout_marginStart="49dp"
        android:layout_below="@+id/welcome"
        android:layout_alignParentStart="true">

        <Button
            android:text="@string/recognize"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/recognizeMenuButton" />

        <Button
            android:text="@string/search"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/searchMenuButton"
            android:elevation="9dp" />

        <Button
            android:text="@string/viewMap"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/mapMenuButton"
            android:elevation="18dp" />

    </TableRow>

    <TextView
        android:text="@string/welcomeBack"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/welcome"
        android:textSize="24sp"
        android:textStyle="normal|bold"
        android:layout_marginTop="46dp"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />

    <Button
        android:text="@string/logout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="79dp"
        android:id="@+id/logout" />
</RelativeLayout>

调试日志永远不会输出我在监听器中设置的消息。知道发生了什么事吗？

Logcat 输出:

12-11 23:36:14.584 21251-21251/? E/Zygote: v2
12-11 23:36:14.584 21251-21251/? I/libpersona: KNOX_SDCARD checking this for 10327
12-11 23:36:14.584 21251-21251/? I/libpersona: KNOX_SDCARD not a persona
12-11 23:36:14.584 21251-21251/? W/SELinux: Function: selinux_compare_spd_ram, index[1], priority [2], priority version is VE=SEPF_SECMOBILE_6.0.1_0029
12-11 23:36:14.584 21251-21251/? E/Zygote: accessInfo : 0
12-11 23:36:14.584 21251-21251/? W/SELinux: SELinux: seapp_context_lookup: seinfo=default, level=s0:c512,c768, pkgname=abon219.com.musicmappr 
12-11 23:36:14.584 21251-21251/? I/art: Late-enabling -Xcheck:jni
12-11 23:36:14.614 21251-21251/? D/ActivityThread: Added TimaKeyStore provider
12-11 23:36:14.654 21251-21251/abon219.com.musicmappr W/ResourcesManager: getTopLevelResources: /data/app/abon219.com.musicmappr-1/base.apk / 1.0 running in abon219.com.musicmappr rsrc of package abon219.com.musicmappr
12-11 23:36:14.654 21251-21251/abon219.com.musicmappr I/InjectionManager: Inside getClassLibPath + mLibMap{0=, 1=}
12-11 23:36:14.674 21251-21251/abon219.com.musicmappr D/ResourcesManager: For user 0 new overlays fetched Null
12-11 23:36:14.674 21251-21251/abon219.com.musicmappr I/InjectionManager: Inside getClassLibPath caller 
12-11 23:36:14.684 21251-21251/abon219.com.musicmappr I/InstantRun: Instant Run Runtime started. Android package is abon219.com.musicmappr, real application class is null.
12-11 23:36:15.234 21251-21251/abon219.com.musicmappr D/InjectionManager: InjectionManager
12-11 23:36:15.234 21251-21251/abon219.com.musicmappr D/InjectionManager: fillFeatureStoreMap abon219.com.musicmappr
12-11 23:36:15.234 21251-21251/abon219.com.musicmappr I/InjectionManager: Constructor abon219.com.musicmappr, Feature store :{}
12-11 23:36:15.234 21251-21251/abon219.com.musicmappr I/InjectionManager: featureStore :{}
12-11 23:36:15.294 21251-21251/abon219.com.musicmappr W/ResourcesManager: getTopLevelResources: /data/app/abon219.com.musicmappr-1/base.apk / 1.0 running in abon219.com.musicmappr rsrc of package abon219.com.musicmappr
12-11 23:36:15.304 21251-21251/abon219.com.musicmappr W/ResourcesManager: getTopLevelResources: /data/app/abon219.com.musicmappr-1/base.apk / 1.0 running in abon219.com.musicmappr rsrc of package abon219.com.musicmappr
12-11 23:36:15.344 21251-21251/abon219.com.musicmappr W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
12-11 23:36:15.464 21251-21251/abon219.com.musicmappr D/Activity: performCreate Call Injection manager
12-11 23:36:15.474 21251-21251/abon219.com.musicmappr I/InjectionManager: dispatchOnViewCreated > Target : abon219.com.musicmappr.MainActivity isFragment :false
12-11 23:36:15.484 21251-21251/abon219.com.musicmappr D/SecWifiDisplayUtil: Metadata value : SecSettings2
12-11 23:36:15.484 21251-21251/abon219.com.musicmappr D/ViewRootImpl: #1 mView = com.android.internal.policy.PhoneWindow$DecorView{7dfac40 I.E...... R.....ID 0,0-0,0}
12-11 23:36:15.484 21251-21429/abon219.com.musicmappr D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
12-11 23:36:15.564 21251-21429/abon219.com.musicmappr D/libEGL: loaded /vendor/lib64/egl/libGLES_mali.so
12-11 23:36:15.574 21251-21429/abon219.com.musicmappr D/libEGL: eglInitialize EGLDisplay = 0x7f9b9ff178
12-11 23:36:15.574 21251-21429/abon219.com.musicmappr I/OpenGLRenderer: Initialized EGL, version 1.4

                                                                        [ 12-11 23:36:15.574 21251:21429 D/         ]
                                                                        ro.exynos.dss isEnabled: 0
12-11 23:36:15.584 21251-21429/abon219.com.musicmappr D/mali_winsys: new_window_surface returns 0x3000,  [1440x2560]-format:1
12-11 23:36:15.614 21251-21251/abon219.com.musicmappr I/InjectionManager: dispatchCreateOptionsMenu :abon219.com.musicmappr.MainActivity
12-11 23:36:15.614 21251-21251/abon219.com.musicmappr I/InjectionManager: dispatchPrepareOptionsMenu :abon219.com.musicmappr.MainActivity
12-11 23:36:15.624 21251-21429/abon219.com.musicmappr D/libGLESv1: DTS_GLAPI : DTS is not allowed for Package : abon219.com.musicmappr
12-11 23:36:15.654 21251-21251/abon219.com.musicmappr D/ViewRootImpl: MSG_RESIZED_REPORT: ci=Rect(0, 84 - 0, 0) vi=Rect(0, 84 - 0, 0) or=1
12-11 23:36:15.674 21251-21251/abon219.com.musicmappr I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@43db2d6 time:276904
12-11 23:36:21.074 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:21.124 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:21.224 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:21.344 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:21.354 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:21.474 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:31.514 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:31.634 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:31.724 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:31.804 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:31.884 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:31.934 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:32.034 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:32.074 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:32.154 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:32.224 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:32.294 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:32.354 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:32.434 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:32.504 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:32.584 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:32.634 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1
12-11 23:36:32.714 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 0
12-11 23:36:32.774 21251-21251/abon219.com.musicmappr D/ViewRootImpl: ViewPostImeInputStage processPointer 1

Answer 1

Activity 在 list 中，代码看起来不错，您可以加载布局，但只是按钮不起作用。

您可能加载了只显示该布局文件的错误类