Question

我有一个应用程序，突然我的用户界面停止工作分享按钮工作和选项菜单但由于一些奇怪的原因我的按钮停止工作，他们不点击或做任何事情。是因为我的OptionsMenu类可能会扩展吗？我不知道为什么？这种情况经常发生我尝试新建立我的项目但没有用。我在这里有我的MainActivity课程

package com.mycompany.myapp;
import android.app.*;
import android.os.*;
import android.widget.Button;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.EditText;
import android.widget.AdapterView;
import android.widget.TextView;
import java.io.*;
import android.content.*;
import android.view.*;
import android.media.*;
import javax.security.auth.*;
import android.util.*;
import android.widget.AdapterView.*;
import java.net.*;
import org.apache.http.util.*;
import android.webkit.*;
import java.text.*;
import android.graphics.*;
import android.widget.TextView.*;
import android.text.*;
import android.widget.ActionMenuView.*;
import android.view.MenuItem.*;
import android.widget.*;
import android.content.Intent;
import android.net.*;
import java.util.*;
import java.nio.channels.*;
import java.nio.*;
import android.*;
public class MainActivity extends OptionsMenu
{
private MusicPlayer musicPlayer;
private String pos = "";
private FileManager fm;
private BlueTheme BlueTheme;
private PinkTheme PinkTheme;
private Downloader downloader;
private EditTextCustomizable etc;

@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);
    musicPlayer = new MusicPlayer(new MediaPlayer());
    fm = new FileManager(this,this);
    BlueTheme = new BlueTheme(this,this ,fm);
    PinkTheme = new PinkTheme(this,this,fm);
    etc = new EditTextCustomizable(this , BlueTheme , PinkTheme);
    etc.customize();
    Button rewind = (Button)findViewById(R.id.rewind);
    rewind.setText("<");
    Button fwd = (Button)findViewById(R.id.fwd);
    fwd.setText(">");
    ListView downloadsList = (ListView) findViewById(R.id.downloads);
    downloadsList.setOnItemClickListener(new AdapterView.OnItemClickListener(){
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3){
                ListView downloadsList = (ListView) findViewById(R.id.downloads);
                 pos = downloadsList.getItemAtPosition(position).toString();
                musicPlayer.InitPlay(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getPath() + "/" + pos);
            }});
}
public void Play(View view){
    musicPlayer.Play();
    EditText search = (EditText)findViewById(R.id.search);
    musicPlayer.SearchResult(search.getText().toString());
}


public void Pause(View view){
    musicPlayer.Pause();
}

public void Stop(View view){
    musicPlayer.Stop();
    }
public void Rewind(View view){
    musicPlayer.Rewind();
}

public void Fwd(View view){
    musicPlayer.Fwd();
}

public void onDownloadClick(View view){
    EditText bar = (EditText)findViewById(R.id.search);
    String downloadFile = bar.getText().toString();
    downloader.DownloadURL(downloadFile);
}
}

这里是OptionsMenu类，我在这里扩展Activity，注意我没有使用AppCompatActivity。

package com.mycompany.myapp;
import android.view.*;
import android.app.*;
import android.net.*;
import java.util.*;
import android.widget.ListView;
import android.content.*;
import java.io.*;
import android.widget.*;
import android.*;
public class OptionsMenu extends Activity
{
private MusicPlayer musicPlayer;
private FileManager fm;
private BlueTheme blueTheme;
private PinkTheme pinkTheme;
private final int blue = Menu.FIRST;
private final int pink = blue + 1;
private int items = 0;

@Override
public boolean onCreateOptionsMenu(Menu menu)
{
    fm = new FileManager(this,this);
    blueTheme = new BlueTheme(this,this,fm);
    pinkTheme = new PinkTheme(this,this,fm);
    fm.ListFiles();
    menu.clear();
    MenuInflater inflator = getMenuInflater();
    inflator.inflate(R.menu.sidebar_menu, menu);
    SubMenu subMenu = menu.addSubMenu("Themes");
    subMenu.add(0 , blue , 0 , "Blue");
    subMenu.add(0, pink , 1, "Pink");
    items = subMenu.getItem().getItemId();

    // tool bar menu
    ArrayList<Uri> al = new ArrayList<Uri>();
    ArrayList<Uri> emailAl = new ArrayList<Uri>();
    MenuItem mi = menu.findItem(R.id.searchable);
    MenuItem share = menu.findItem(R.id.share);
    mi.setIcon(android.R.drawable.ic_search_category_default);
    SearchView  searchView = (SearchView) menu.findItem(R.id.searchable).getActionView();
    SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
    searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
    ShareActionProvider sap = (ShareActionProvider) share.getActionProvider();
    Intent intentShare = new Intent(Intent.ACTION_SEND_MULTIPLE);
    Intent intentEmail = new Intent(Intent.ACTION_SEND_MULTIPLE);
    intentShare.setType("audio/mp3");
    intentEmail.setType("audio/mp3");
    Uri uri = null;
    Uri uriEmail = null;
    //FileInputStream in = null;
    //FileOutputStream out = null;
    //try{
    //  for(File file : downloads){
    //  uri = Uri.fromFile(file);
    //      in = new FileInputStream(file);
    //      File outFile = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS), file.getName()); // IMPORTANT! You need to create your file object separately, so you can then pass it to intent as well.. 
    //      out = new FileOutputStream(outFile);
    //  byte[] buf = new byte[1024]; 
    //      int len;
    //      while ( (len = in.read(buf, 0, buf.length)) != -1){
    //      out.write(buf, 0, len);
    //          } 

    //          in.close(); 
    //          out.flush();
    //          out.close();
    //          uriEmail = Uri.fromFile(outFile); // Here you passed the parent directory file.. Pass newly created file object .. 
    //          al.add(uri); 
    //          emailAl.add(uriEmail);

    //          }

    //          } catch(IOException e){
    //              e.printStackTrace();
    //          }
    //for(File file : fm.GetDownloadFiles()){
    //  uriEmail = Uri.fromFile(fm.exportFile(file));
    //}
    emailAl.add(uriEmail);
    intentShare.putParcelableArrayListExtra(Intent.EXTRA_STREAM,al );
    intentEmail.putParcelableArrayListExtra(Intent.EXTRA_STREAM,emailAl);
    intentEmail.putExtra(Intent.EXTRA_SUBJECT , "Subject");
    intentEmail.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);  
    sap.setShareIntent(intentShare);
    sap.setShareIntent(intentEmail);
    return super.onCreateOptionsMenu(menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item)
{

    switch(item.getItemId()){
        case R.id.playlist:

            break;
        case blue:
            blueTheme.Blue();
            break;

        case pink:
            pinkTheme.Pink();
            break;
        case R.id.muteoption:
            musicPlayer.MuteVolume();
            break;
        case R.id.unmuteoption:
            musicPlayer.UnMuteVolume();
            break;

        default:
            return super.onOptionsItemSelected(item);
            // TODO: Implement this method
    }
    return super.onOptionsItemSelected(item);
}
}

如果需要，我可以发布更多代码。并且如果不够清楚就会reedit谢谢你

EDITED

这是布局XML

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

<Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:elevation="4dp"
    android:showAsAction="always"
    android:windowActionBar="false"
    android:theme="@android:style/Theme.Holo.Light"
    />

<TextView
    android:id="@+id/downloadsTextView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    />
<Button
    android:id="@+id/downloadButton"
    android:text="@string/downloadButton"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:onClick="onDownloadClick"
/>

<EditText
    android:id="@+id/search"
    android:hint="Do something"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:layout_below="@id/downloadButton"
    android:background="@android:color/transparent"
    android:paddingBottom="20dp"
    android:paddingTop="20dp"/>

<Button
    android:id="@+id/pause"
    android:text="@string/pause"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:onClick="Pause"
    android:layout_centerInParent="true"
    android:layout_below="@id/search"
    />

<Button
    android:id="@+id/play"
    android:text="@string/play"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:onClick="Play"
    android:layout_toRightOf="@id/pause"
    android:layout_below="@id/search"/>

<Button
    android:id="@+id/stop"
    android:text="@string/stop"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:onClick="Stop" 
    android:layout_toLeftOf="@id/pause"
    android:layout_below="@id/search"/>

<Button
    android:id="@+id/rewind"
    android:text="@string/rewind"
    android:layout_height="wrap_content"
    android:layout_width="50dp"
    android:onClick="Rewind"
    android:layout_toLeftOf="@id/stop"
    android:layout_below="@id/search"/>

<Button
    android:id="@+id/fwd"
    android:text="@string/fwd"
    android:layout_height="wrap_content"
    android:layout_width="50dp"
    android:onClick="Fwd"
    android:layout_toRightOf="@id/play"
    android:layout_below="@id/search"/>

<ListView
    android:id="@+id/downloads"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/rewind"
    />
</RelativeLayout>

Answer 1

如果可能，粘贴布局xml。我猜这是由于某些东西（可能是某些父视图）中断了焦点，因此子视图按钮无法获得焦点。

我的用户界面不工作（按钮）

1 个答案: