android - 单击 ListView 项时，未执行任何操作且 LogCat 显示 ViewPostImeInputStage ACTION_DOWN

Question

我正在尝试创建一个搜索抛出 ListView 项目的 Activity 。我创建了一个 switch与 case Category其中 Category是 main 中的一项<string-array> ，但是当我单击该项目时，没有执行任何操作并且 LogCat 显示此消息 --> 04-29 20:20:00.380: D/ViewRootImpl(30869): ViewPostImeInputStage ACTION_DOWN

谁能告诉我解决办法？

搜索.java

 public class Search extends Activity implements TextWatcher/*,AdapterView.OnItemClickListener*/{

private String[] main,category,manufacturer,Chanel,Gucci,DandG,DKNY,MK;
private ListView listView;

private ArrayList<ListEntry> data_normal;
private ArrayList<ListEntry> data_search;

private EditText main_listview_edittext;


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

    //get data
    main=getResources().getStringArray(R.array.main);
    manufacturer=getResources().getStringArray(R.array.Manufacturer);
    category=getResources().getStringArray(R.array.Category);
    Chanel=getResources().getStringArray(R.array.Chanel);
    Gucci=getResources().getStringArray(R.array.Gucci);
    DandG=getResources().getStringArray(R.array.DandG);
    DKNY=getResources().getStringArray(R.array.DKNY);
    MK=getResources().getStringArray(R.array.MK);



    //loop data
    data_normal = new ArrayList<ListEntry>();
    for(int i=0; i<main.length-1; i++){
        ListEntry listEntry1=new ListEntry();
        listEntry1.setTitle(main[i]);
        data_normal.add(listEntry1);
    }

    for(int i=0; i<category.length; i++){
        ListEntry listEntry1=new ListEntry();
        listEntry1.setTitle(category[i]);
        data_normal.add(listEntry1);
    }

    for(int i=0; i<manufacturer.length; i++){
        ListEntry listEntry=new ListEntry();
        listEntry.setTitle(manufacturer[i]);
        data_normal.add(listEntry);
    }

    for(int i=0; i<Chanel.length; i++){
        ListEntry listEntry1=new ListEntry();
        listEntry1.setTitle(Chanel[i]);
        data_normal.add(listEntry1);
    }

    for(int i=0; i<Gucci.length; i++){
        ListEntry listEntry1=new ListEntry();
        listEntry1.setTitle(Gucci[i]);
        data_normal.add(listEntry1);
    }

    for(int i=0; i<DandG.length; i++){
        ListEntry listEntry1=new ListEntry();
        listEntry1.setTitle(DandG[i]);
        data_normal.add(listEntry1);
    }

    for(int i=0; i<DKNY.length; i++){
        ListEntry listEntry1=new ListEntry();
        listEntry1.setTitle(DKNY[i]);
        data_normal.add(listEntry1);
    }

    for(int i=0; i<MK.length; i++){
        ListEntry listEntry1=new ListEntry();
        listEntry1.setTitle(MK[i]);
        data_normal.add(listEntry1);
    }

    //view matching..
    main_listview_edittext=(EditText)findViewById(R.id.main_listview_edittext);
    listView=(ListView)findViewById(R.id.main_listView);
    doListNormal();


    //event EditText
    main_listview_edittext.addTextChangedListener(this); //TextWatcher

}


private void doListSearch() {
    listView.setAdapter(new CustomAdapter(data_search));
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {

            switch(listView.getItemAtPosition(position).toString()){

            case "Category":
                Intent i=new Intent(Search.this,MainActivity.class);
                startActivity(i);
                //get.lv.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,getResources().getStringArray(R.array.Category)));
                break;}
            //whatever you want to happen when an item is clicked
        }
    });
}

private void doListNormal() {
    listView.setAdapter(new CustomAdapter(data_normal));
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {

            switch(listView.getItemAtPosition(position).toString()){

            case "Category":
                Intent i=new Intent(Search.this,MainActivity.class);
                startActivity(i);
                //get.lv.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,getResources().getStringArray(R.array.Category)));
                break;}
            //whatever you want to happen when an item is clicked
        }
    });
}


/*@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

    //Intent i=new Intent(Search.this,SwipeActivity.class);

    switch(listView.getItemAtPosition(position).toString()){

    case "Category":
        Intent i=new Intent(Search.this,MainActivity.class);
        startActivity(i);
        //get.lv.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,getResources().getStringArray(R.array.Category)));
        break;

    }
}*/


//TextWatchet implement method 1
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {

}

//TextWatchet implement method 2
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {

    if(main_listview_edittext.length() != 0){

        data_search = new ArrayList<ListEntry>();

        for(int i=0; i<data_normal.size(); i++){

            //Check if the Text is Match the Contents
            if(data_normal.get(i).getTitle().contains(s)||data_normal.get(i).getTitle().toLowerCase().contains(s)||data_normal.get(i).getTitle().toUpperCase().contains(s)){

                ListEntry listEntry=new ListEntry();
                listEntry.setTitle(data_normal.get(i).getTitle());
                data_search.add(listEntry);

            }
        }

        doListSearch();

    }else {
        doListNormal();
    }
}

//TextWatchet implement method 3
@Override
public void afterTextChanged(Editable s) {

}


public class CustomAdapter extends BaseAdapter{

    private ArrayList<ListEntry> mData;

    public Holder holder=new Holder();

    public CustomAdapter(ArrayList<ListEntry> data){
        this.mData=data;
    }

    @Override
    public int getCount() {
        return mData.size();
    }

    @Override
    public Object getItem(int position) {
        return data_normal.get(position);
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        convertView=View.inflate(Search.this,R.layout.listview_item_layout,null);

        if(convertView!=null){

            //view matching child
            holder.title = (TextView) convertView.findViewById(R.id.listview_item_title);

            holder.title.setText(mData.get(position).getTitle());

            convertView.setTag(holder);

        }else{
            convertView=(View) convertView.getTag();
        }
        return convertView;
    }

    public class Holder{
        public TextView title;
    }
}

}

ListEntry.java

public class ListEntry {

private String title;
private String address;

public String getTitle(){
    return title;
}

public void setTitle(String title){
    this.title=title;
}

@Override
public String toString() {
    return super.toString();
}

日志猫

04-30 22:11:22.610: D/SecWifiDisplayUtil(18274): Metadata value : none
04-30 22:11:22.645: D/PhoneWindow(18274): *FMB* installDecor mIsFloating : false
04-30 22:11:22.645: D/PhoneWindow(18274): *FMB* installDecor flags : 8454400
04-30 22:11:22.650: D/AbsListView(18274): Get MotionRecognitionManager
04-30 22:11:22.650: E/MotionRecognitionManager(18274): mSContextService = android.hardware.scontext.ISContextService$Stub$Proxy@aacd083
04-30 22:11:22.650: E/MotionRecognitionManager(18274): motionService = com.samsung.android.motion.IMotionRecognitionService$Stub$Proxy@3b6ee200
04-30 22:11:22.650: E/MotionRecognitionManager(18274): motionService = com.samsung.android.motion.IMotionRecognitionService$Stub$Proxy@3b6ee200
04-30 22:11:22.660: D/OpenGLRenderer(18274): Use EGL_SWAP_BEHAVIOR_PRESERVED: true
04-30 22:11:22.670: D/PhoneWindow(18274): *FMB* isFloatingMenuEnabled mFloatingMenuBtn : null
04-30 22:11:22.670: D/PhoneWindow(18274): *FMB* isFloatingMenuEnabled return false
04-30 22:11:22.675: D/SRIB_DCS(18274): log_dcs ThreadedRenderer::initialize entered! 
04-30 22:11:22.680: I/OpenGLRenderer(18274): Initialized EGL, version 1.4
04-30 22:11:22.685: I/OpenGLRenderer(18274): HWUI protection enabled for context ,  &this =0xb4627190 ,&mEglDisplay = 1 , &mEglConfig = -1267322608 
04-30 22:11:22.685: D/OpenGLRenderer(18274): Get maximum texture size. GL_MAX_TEXTURE_SIZE is 8192
04-30 22:11:22.685: D/OpenGLRenderer(18274): Enabling debug mode 0
04-30 22:11:22.685: D/mali_winsys(18274): new_window_surface returns 0x3000,  [1440x2560]-format:1
04-30 22:11:22.700: D/ListView(18274): change accessibility focus position = 0
04-30 22:11:22.795: I/Timeline(18274): Timeline: Activity_idle id: android.os.BinderProxy@23126a39 time:66657037
04-30 22:11:26.315: D/ViewRootImpl(18274): ViewPostImeInputStage ACTION_DOWN
04-30 22:11:26.425: I/Timeline(18274): Timeline: Activity_launch_request id:com.example.shaymatest time:66660669
04-30 22:11:26.455: D/PhoneWindow(18274): *FMB* installDecor mIsFloating : false
04-30 22:11:26.455: D/PhoneWindow(18274): *FMB* installDecor flags : 8454400
04-30 22:11:26.460: D/AbsListView(18274): Get MotionRecognitionManager
04-30 22:11:26.460: E/MotionRecognitionManager(18274): mSContextService = android.hardware.scontext.ISContextService$Stub$Proxy@c41da89
04-30 22:11:26.460: E/MotionRecognitionManager(18274): motionService = com.samsung.android.motion.IMotionRecognitionService$Stub$Proxy@1795fa8e
04-30 22:11:26.460: E/MotionRecognitionManager(18274): motionService = com.samsung.android.motion.IMotionRecognitionService$Stub$Proxy@1795fa8e
04-30 22:11:26.465: D/SecWifiDisplayUtil(18274): Metadata value : none
04-30 22:11:26.470: D/PhoneWindow(18274): *FMB* isFloatingMenuEnabled mFloatingMenuBtn : null
04-30 22:11:26.470: D/PhoneWindow(18274): *FMB* isFloatingMenuEnabled return false
04-30 22:11:26.485: D/SRIB_DCS(18274): log_dcs ThreadedRenderer::initialize entered! 
04-30 22:11:26.485: D/mali_winsys(18274): new_window_surface returns 0x3000,  [1440x2560]-format:1
04-30 22:11:26.540: D/ListView(18274): change accessibility focus position = 0
04-30 22:11:26.565: E/SpannableStringBuilder(18274): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
04-30 22:11:26.565: E/SpannableStringBuilder(18274): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
04-30 22:11:26.565: I/Timeline(18274): Timeline: Activity_idle id: android.os.BinderProxy@150722af time:66660805
04-30 22:11:26.565: E/SpannableStringBuilder(18274): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
04-30 22:11:26.565: E/SpannableStringBuilder(18274): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
04-30 22:11:26.840: V/ActivityThread(18274): updateVisibility : ActivityRecord{27683843 token=android.os.BinderProxy@23126a39 {com.example.shaymatest/com.example.shaymatest.MainActivity}} show : false
04-30 22:11:27.425: D/ViewRootImpl(18274): ViewPostImeInputStage ACTION_DOWN
04-30 22:11:27.555: D/AndroidRuntime(18274): Shutting down VM
04-30 22:11:27.555: E/AndroidRuntime(18274): FATAL EXCEPTION: main
04-30 22:11:27.555: E/AndroidRuntime(18274): Process: com.example.shaymatest, PID: 18274
04-30 22:11:27.555: E/AndroidRuntime(18274): java.lang.ClassCastException: android.widget.LinearLayout cannot be cast to android.widget.TextView
04-30 22:11:27.555: E/AndroidRuntime(18274):    at com.example.shaymatest.Search.onItemClick(Search.java:126)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at android.widget.AdapterView.performItemClick(AdapterView.java:339)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at android.widget.AbsListView.performItemClick(AbsListView.java:1548)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at android.widget.AbsListView$PerformClick.run(AbsListView.java:3737)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at android.widget.AbsListView$3.run(AbsListView.java:5676)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at android.os.Handler.handleCallback(Handler.java:739)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at android.os.Handler.dispatchMessage(Handler.java:95)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at android.os.Looper.loop(Looper.java:145)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at android.app.ActivityThread.main(ActivityThread.java:6872)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at java.lang.reflect.Method.invoke(Native Method)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at java.lang.reflect.Method.invoke(Method.java:372)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404)
04-30 22:11:27.555: E/AndroidRuntime(18274):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199)

listview_item_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent"
    android:padding="20dp">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TESTING"
        android:textSize="20sp"
        android:textStyle="bold"
        android:id="@+id/listview_item_title"/>

</LinearLayout>

Answer 1

那么看起来你的 switch-case 没有被调用。尝试将 switch 语句替换为 if 语句。使用 .equals() 是比较字符串的更可靠方法。

TextView thisTextView = (TextView)view.findViewById(R.id.listview_item_title);
String text = (String)thisTextView.getText();

if(text.equals("Category")){
   Intent i=new Intent(Search.this, MainActivity.class);
   startActivity(i);
}else{
   Toast.makeText(Search.this,"What's my text: " + text, Toast.LENGTH_LONG).show();
}