Android 我的应用程序赢了';不要显示操作栏
我试图在我的一项活动上显示一个操作栏,但我似乎不明白为什么它不会显示。Android 我的应用程序赢了';不要显示操作栏,android,android-actionbar,android-theme,Android,Android Actionbar,Android Theme,我试图在我的一项活动上显示一个操作栏,但我似乎不明白为什么它不会显示。 有人能帮忙吗 活动: public class Login extends Activity { public static final String TAG = "MainActivity"; public static final String DEFAULT_CHAT_NAME = ""; private WifiP2pManager mManager; private Chan
有人能帮忙吗 活动:
public class Login extends Activity {
public static final String TAG = "MainActivity";
public static final String DEFAULT_CHAT_NAME = "";
private WifiP2pManager mManager;
private Channel mChannel;
private WifiDirectBroadcastReceiver mReceiver;
private IntentFilter mIntentFilter;
private com.ajapps.app.floatingactionbutton.AddFloatingActionButton goToChat;
private ImageView goToSettings;
private TextView goToSettingsText;
private TextView setChatNameLabel;
private EditText setChatName;
private ImageView disconnect;
public static String chatName;
public static ServerInit server;
//Getters and Setters
public WifiP2pManager getmManager() { return mManager; }
public Channel getmChannel() { return mChannel; }
public WifiDirectBroadcastReceiver getmReceiver() { return mReceiver; }
public IntentFilter getmIntentFilter() { return mIntentFilter; }
public com.ajapps.app.floatingactionbutton.AddFloatingActionButton getGoToChat(){ return goToChat; }
public TextView getSetChatNameLabel() { return setChatNameLabel; }
public ImageView getGoToSettings() { return goToSettings; }
public EditText getSetChatName() { return setChatName; }
public TextView getGoToSettingsText() { return goToSettingsText; }
public ImageView getDisconnect() { return disconnect; }
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
//Init the Channel, Intent filter and Broadcast receiver
init();
//Button Go to Settings
goToSettings = (ImageView) findViewById(R.id.goToSettings);
goToSettings();
//Go to Settings text
goToSettingsText = (TextView) findViewById(R.id.textGoToSettings);
//Button Go to Chat
goToChat = (com.ajapps.app.floatingactionbutton.AddFloatingActionButton) findViewById(R.id.goToChat);
goToChat();
//Set the chat name
setChatName = (EditText) findViewById(R.id.setChatName);
setChatNameLabel = (TextView) findViewById(R.id.setChatNameLabel);
setChatName.setText(loadChatName(this));
//Button Disconnect
disconnect = (ImageView) findViewById(R.id.disconnect);
disconnect();
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
}
@Override
public void onResume() {
super.onResume();
registerReceiver(mReceiver, mIntentFilter);
mManager.discoverPeers(mChannel, new WifiP2pManager.ActionListener() {
@Override
public void onSuccess() {
Log.v(TAG, "Discovery process succeeded");
}
@Override
public void onFailure(int reason) {
Log.v(TAG, "Discovery process failed");
}
});
}
@Override
public void onPause() {
super.onPause();
unregisterReceiver(mReceiver);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// int idItem = item.getItemId();
return super.onOptionsItemSelected(item);
}
public void init(){
mManager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE);
mChannel = mManager.initialize(this, getMainLooper(), null);
mReceiver = WifiDirectBroadcastReceiver.createInstance();
mReceiver.setmManager(mManager);
mReceiver.setmChannel(mChannel);
mReceiver.setmActivity(this);
mIntentFilter = new IntentFilter();
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION);
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION);
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION);
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION);
}
public void goToChat(){
goToChat.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
if(!setChatName.getText().toString().equals("")){
//Set the chat name
saveChatName(Login.this, setChatName.getText().toString());
chatName = loadChatName(Login.this);
//Start the init process
if(mReceiver.isGroupeOwner() == WifiDirectBroadcastReceiver.IS_OWNER){
Toast.makeText(Login.this, "I'm the group owner " + mReceiver.getOwnerAddr().getHostAddress(), Toast.LENGTH_SHORT).show();
server = new ServerInit();
server.start();
}
else if(mReceiver.isGroupeOwner() == WifiDirectBroadcastReceiver.IS_CLIENT){
Toast.makeText(Login.this, "I'm the client", Toast.LENGTH_SHORT).show();
ClientInit client = new ClientInit(mReceiver.getOwnerAddr());
client.start();
}
//Open the ChatActivity
Intent intent = new Intent(getApplicationContext(), ChatActivity.class);
startActivity(intent);
}
else{
Toast.makeText(Login.this, "Please enter a chat name", Toast.LENGTH_SHORT).show();
}
}
});
}
public void disconnect(){
disconnect.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mManager.removeGroup(mChannel, null);
finish();
}
});
}
public void goToSettings(){
goToSettings.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
//Open Wifi settings
startActivityForResult(new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS), 0);
}
});
}
//Save the chat name to SharedPreferences
public void saveChatName(Context context, String chatName) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
Editor edit = prefs.edit();
edit.putString("chatName", chatName);
edit.commit();
}
//Retrieve the chat name from SharedPreferences
public String loadChatName(Context context) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
return prefs.getString("chatName", DEFAULT_CHAT_NAME);
}
}
和我的xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:fab="http://schemas.android.com/apk/res-auto"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.ajapps.wifichat.MainActivity">
<!-- Go to Settings screen -->
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="@+id/linearLayout"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true">
<ImageView
android:id="@+id/goToSettings"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="@string/go_to_settings_button"
android:src="@drawable/wifi_icon"
android:layout_gravity="center" />
<TextView
android:id="@+id/textGoToSettings"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:text="@string/go_to_settings_text"
android:textSize="16sp"
android:textColor="@color/red"
android:gravity="center"
android:layout_gravity="center_vertical"/>
</LinearLayout>
<!-- Go to Chat screen -->
<ImageView
android:id="@+id/disconnect"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/setChatNameLabel"
android:contentDescription="@string/disconnect"
android:src="@drawable/disconnect"
android:layout_marginBottom="15dp"
android:visibility="gone"
android:layout_centerHorizontal="true"/>
<TextView
android:id="@id/setChatNameLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/setChatName"
android:text="@string/set_chat_name"
android:layout_centerHorizontal="true"
android:textSize="18sp"
android:textColor="@color/app_text"
android:visibility="gone" />
<com.ajapps.app.floatingactionbutton.AddFloatingActionButton
android:id="@+id/goToChat"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
fab:fab_icon="@drawable/send"
android:background="@drawable/button_pressed2"
fab:fab_plusIconColor="@color/half_black"
fab:fab_colorNormal="@color/red"
fab:fab_colorPressed="@color/red_pressed"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:visibility="gone" />
<EditText
android:id="@+id/setChatName"
android:inputType="textCapWords"
android:lines="1"
android:maxLength="20"
android:layout_width="160dp"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:background="@drawable/edit_text"
android:layout_marginTop="15dp"
android:visibility="gone" />
</RelativeLayout>
原因如下:
公共类登录扩展活动{
你必须从一开始就扩展
不是ActionBarActivity,因为它是。原因如下:
公共类登录扩展活动{
你必须从一开始就扩展 不是ActionBarActivity,因为它是。只需更改即可
public class Login extends Activity {
}
public class Login extends AppCompatActivity {
}
换衣服
public class Login extends Activity {
}
public class Login extends AppCompatActivity {
}
你确定你没有使用.NoActionBar主题吗?请查看我的更新,我包括了我的theme@FrankN.Stein它不允许我扩展到这一点,所以我将它扩展到了ActionBarActivity,它起了作用。感谢ActionBarActivity。你确定你没有使用.NoActionBar主题吗?请查看我的更新,我包括了我的theme@FrankN.stein它不允许我扩展到这一点,所以我将它扩展到了ActionBarActivity,它起了作用,感谢ActionBarActivity