android.widget.TextView#append ( )源码实例Demo

private void d()
{
    z = findViewById(0x7f0a003a);
    B = findViewById(0x7f0a003c);
    r = (Button)findViewById(0x7f0a003f);
    r.setOnClickListener(this);
    s = (Button)findViewById(0x7f0a0040);
    s.setOnClickListener(this);
    C = (TextView)findViewById(0x7f0a003e);
    String s1 = getString(0x7f0d01dd);
    C.setText(Html.fromHtml(getResources().getString(0x7f0d003b)));
    SpannableString spannablestring = new SpannableString(s1);
    spannablestring.setSpan(new d(this), 0, s1.length(), 33);
    C.setHighlightColor(0);
    C.append(spannablestring);
    C.setMovementMethod(LinkMovementMethod.getInstance());
}
 

@Override
public void onCallStateChanged(int state, String number) {
    String phoneState = number;
    switch (state) {
        case TelephonyManager.CALL_STATE_IDLE:
            phoneState += "CALL_STATE_IDLE\n";
            break;
        case TelephonyManager.CALL_STATE_RINGING:
            phoneState += "CALL_STATE_RINGING\n";
            break;
        case TelephonyManager.CALL_STATE_OFFHOOK:
            phoneState += "CALL_STATE_OFFHOOK\n";
            break;
    }
    TextView textView = findViewById(R.id.textView);
    textView.append(phoneState);
}
 

void showInstructions() {
    TextView tv = new TextView(activity);
    tv.setMovementMethod(LinkMovementMethod.getInstance());
    tv.setTextSize(TypedValue.COMPLEX_UNIT_SP, 15);
    tv.setText(fromHtml(activity.getString(R.string.instructions_text)));
    PackageInfo pInfo = null;
    String version = "\n" + activity.getString(R.string.app_name) + "  Version: ";
    try {
        pInfo = activity.getPackageManager().getPackageInfo(activity.getPackageName(), 0);
        version += pInfo.versionName;
    } catch (PackageManager.NameNotFoundException e) {
        version += "(Unknown)";
    }
    tv.append(version);
    new AlertDialog.Builder(activity)
            .setTitle(R.string.instructions_title)
            .setView(tv)
            .setNegativeButton(R.string.dismiss, null)
            .create().show();
}
 

@Override
protected final void onPostExecute(Object arg) {
  TextView textView = textViewRef.get();
  if (textView != null) {
    for (CharSequence content : newContents) {
      textView.append(content);
    }
    textView.setMovementMethod(LinkMovementMethod.getInstance());
  }
  HistoryManager historyManager = historyManagerRef.get();
  if (historyManager != null) {
    for (String[] text : newHistories) {
      historyManager.addHistoryItemDetails(text[0], text[1]);
    }
  }
}
 

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

    // COMPLETED (3) Use findViewById to get a reference to the TextView from the layout
    mToysListTextView = (TextView) findViewById(R.id.tv_toy_names);

    // COMPLETED (4) Use the static ToyBox.getToyNames method and store the names in a String array
    String toyNames[] = ToyBox.getToyNames();

    // COMPLETED (5) Loop through each toy and append the name to the TextView (add \n for spacing)
    for(String toyName:toyNames) {
        mToysListTextView.append(toyName + "\n\n\n");
    }
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
	
	AppSettings.initializeAppSettings(mContext);
	
	View rootView = inflater.inflate(R.layout.fragment_settings, container, false);
	
	// 'Run in background' setting
	mCheckBackground = (CheckBox) rootView.findViewById(R.id.check_background_service);
	mCheckBackground.setChecked(AppSettings.getBgService());
	mCheckBackground.setOnCheckedChangeListener(new OnCheckedChangeListener() {
		@Override
		public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
			AppSettings.setSettingsValue(AppSettings.SETTINGS_BACKGROUND_SERVICE, isChecked, 0, null);
			mFragmentListener.OnFragmentCallback(IFragmentListener.CALLBACK_RUN_IN_BACKGROUND, 0, 0, null, null,null);
		}
	});
	
	mTextIot = (TextView) rootView.findViewById(R.id.text_iot_guide);
	mTextIot.append("\n\nthingspeak:key=xxx&field1=xxx[*]\n\n-> HTTP request: http://184.106.153.149/update?key=xxx&field1=xxx");
	
	
	return rootView;
}
 

protected void onPostExecute(CollectionResponseMessageData messages) {
  // Check if exception was thrown
  if (exceptionThrown != null) {
    Log.e(RegisterActivity.class.getName(), 
        "Exception when listing Messages", exceptionThrown);
    showDialog("Failed to retrieve the last 5 messages from " +
    		"the endpoint at " + messageEndpoint.getBaseUrl() +
    		", check log for details");
  }
  else {
    TextView messageView = (TextView) findViewById(R.id.msgView);
    messageView.setText("Last 5 Messages read from " + 
        messageEndpoint.getBaseUrl() + ":\n");
    for(MessageData message : messages.getItems()) {
      messageView.append(message.getMessage() + "\n");
    }
  }
}
 

@Override
public void convert(EasyLVHolder holder, int position, BookMark item) {
    TextView tv = holder.getView(R.id.tvMarkItem);

    SpannableString spanText = new SpannableString((position + 1) + ". " + item.title + ": ");
    spanText.setSpan(new ForegroundColorSpan(ContextCompat.getColor(mContext, R.color.light_coffee)),
            0, spanText.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);

    tv.setText(spanText);

    if (item.desc != null) {
        tv.append(item.desc
                .replaceAll("　", "")
                .replaceAll(" ", "")
                .replaceAll("\n", ""));
    }

}
 

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.main);
	TextView contactView = (TextView) findViewById(R.id.contactview);

	Cursor cursor = getContacts();

	while (cursor.moveToNext()) {

		String displayName = cursor.getString(cursor
				.getColumnIndex(ContactsContract.Data.DISPLAY_NAME));
		contactView.append("Name: ");
		contactView.append(displayName);
		contactView.append("\n");
	}
	// Closing the cursor
	cursor.close();
}
 

private void manageStory(HeaderHolder holder)
{
	if (holder.getStoryView().get() != null)
	{
		TextView view = holder.getStoryView().get();

		if (holder.getStory() != null && holder.getStory().length() > 0)
		{
			view.setText(holder.getStory());

			if (holder.getTags() != null && holder.getTags().size() > 0)
			{
				TextViewUtil.setTextClickableForTags(getContext(view), view,
						holder.getTags(), specialLayout == SpecialLayout.STREAM_DETAIL);
			}
		}
		else
		{
			view.setText(holder.getAuthorName());

				TextViewUtil.setElementClickable(getContext(view), view,
					holder.getAuthorName(), holder.getAuthorId(),
					holder.getAuthorType(), specialLayout == SpecialLayout.STREAM_DETAIL);

			if (holder.getTargetId() != null && holder.getTargetId().length() > 0
					&& holder.getTargetName().length() > 0
					&& !holder.getTargetId().equals(holder.getAuthorId()))
			{
				view.append(" > " + holder.getTargetName());

					TextViewUtil.setElementClickable(getContext(view), view,
						holder.getTargetName(), holder.getTargetId(),
						holder.getTargetType(), specialLayout == SpecialLayout.STREAM_DETAIL);
			}
		}

		view.setVisibility(View.VISIBLE);
	}
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
	// Inflate the layout for this fragment
	View myView = inflater.inflate(R.layout.fragment_server, container, false);
	//text field for output info.
	output = (TextView) myView.findViewById(R.id.sv_output);

	btn_start = (Button) myView.findViewById(R.id.start_server);

	btn_start.setOnClickListener( new View.OnClickListener(){
		@Override
		public void onClick(View v) {
			output.append("Starting server\n");
			 startServer();
		}
	});


	//setup the bluetooth adapter.
	mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
	if (mBluetoothAdapter == null) {
		// Device does not support Bluetooth
		output.append("No bluetooth device.\n");
		btn_start.setEnabled(false);
	}

	return myView;
}
 

private void addText(TextView textView, String content) {
    textView.append(content);
    textView.append("\n");
    int offset = textView.getLineCount() * textView.getLineHeight();
    if (offset > textView.getHeight()) {
        textView.scrollTo(0, offset - textView.getHeight());
    }
}
 

/**
 * Called when the activity is first created. This is where you should do all of your normal
 * static set up: create views, bind data to lists, etc.
 * <p>
 * Always followed by onStart().
 *
 * @param savedInstanceState The Activity's previously frozen state, if there was one.
 */
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mLifecycleDisplay = (TextView) findViewById(R.id.tv_lifecycle_events_display);

    /*
     * If savedInstanceState is not null, that means our Activity is not being started for the
     * first time. Even if the savedInstanceState is not null, it is smart to check if the
     * bundle contains the key we are looking for. In our case, the key we are looking for maps
     * to the contents of the TextView that displays our list of callbacks. If the bundle
     * contains that key, we set the contents of the TextView accordingly.
     */
    if (savedInstanceState != null) {
        if (savedInstanceState.containsKey(LIFECYCLE_CALLBACKS_TEXT_KEY)) {
            String allPreviousLifecycleCallbacks = savedInstanceState
                    .getString(LIFECYCLE_CALLBACKS_TEXT_KEY);
            mLifecycleDisplay.setText(allPreviousLifecycleCallbacks);
        }
    }

    // COMPLETED (4) Iterate backwards through mLifecycleCallbacks, appending each String and a newline to mLifecycleDisplay
    for (int i = mLifecycleCallbacks.size() - 1; i >= 0; i--) {
        mLifecycleDisplay.append(mLifecycleCallbacks.get(i) + "\n");
    }
    // COMPLETED (5) Clear mLifecycleCallbacks after iterating through it
    mLifecycleCallbacks.clear();

    logAndAppend(ON_CREATE);
}
 

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

    // COMPLETED (2) Use findViewById to get a reference to the weather display TextView
    mWeatherTextView = (TextView) findViewById(R.id.tv_weather_data);

    // COMPLETED (3) Create an array of Strings that contain fake weather data
    String[] dummyWeatherData = {
            "Today, May 17 - Clear - 17°C / 15°C",
            "Tomorrow - Cloudy - 19°C / 15°C",
            "Thursday - Rainy- 30°C / 11°C",
            "Friday - Thunderstorms - 21°C / 9°C",
            "Saturday - Thunderstorms - 16°C / 7°C",
            "Sunday - Rainy - 16°C / 8°C",
            "Monday - Partly Cloudy - 15°C / 10°C",
            "Tue, May 24 - Meatballs - 16°C / 18°C",
            "Wed, May 25 - Cloudy - 19°C / 15°C",
            "Thu, May 26 - Stormy - 30°C / 11°C",
            "Fri, May 27 - Hurricane - 21°C / 9°C",
            "Sat, May 28 - Meteors - 16°C / 7°C",
            "Sun, May 29 - Apocalypse - 16°C / 8°C",
            "Mon, May 30 - Post Apocalypse - 15°C / 10°C",
    };

    // COMPLETED (4) Append each String from the fake weather data array to the TextView
    for (String dummyWeatherDay : dummyWeatherData) {
        mWeatherTextView.append(dummyWeatherDay + "\n\n\n");
    }
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  TextView text = (TextView) findViewById(R.id.text);
  Map<String, Target> targetMap = Floo.getTargetMap();
  for (Map.Entry<String, Target> entry : targetMap.entrySet()) {
    text.append(entry.getKey());
    text.append("\t\t <-> \t\t");
    text.append(entry.getValue().toTargetUrl());
    text.append("\n");
  }
}
 

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_range_layout);
    TextView textView = (TextView) findViewById(R.id.text_name);
    textView.setText("D");
    findViewById(R.id.btn_start_activity).setVisibility(View.GONE);

    findViewById(R.id.btn_finish_range_by_class).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_range_begin_router_path1).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_range_begin_router_path2).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_range_begin_router_path3).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_all_start_to).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_all_start_to_by_router_path).setVisibility(View.VISIBLE);

    findViewById(R.id.btn_finish_top_activity).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_activity_by_class).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_activity_by_router_path).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_all_activity).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_all_activity_except_activity_class).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_all_activity_except_router_path).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_all_activity_except_by_list).setVisibility(View.VISIBLE);
    findViewById(R.id.btn_finish_all_activity_by_list).setVisibility(View.VISIBLE);


    int count = RouterActivityManager.get().getActivityCount();
    textView.append("\n\nactivity count:");
    textView.append("" + count);
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.about_fragment, container, false);
    TextView text = ((TextView) rootView.findViewById(R.id.text_about));

    switch (currentSection){
        case 1:
            text.setMovementMethod(LinkMovementMethod.getInstance());
            text.setText(R.string.pref_about_desc);
            try {
                PackageInfo pInfo = getActivity().getPackageManager().getPackageInfo(getActivity().getPackageName(), 0);
                String version = pInfo.versionName;
                text.append(version);
            } catch(Exception e){
                Log.e(TAG, "Exception in getting app version", e);
            }
        break;

        case 2:
            text.setText(R.string.dialog_about_credits_desc);
            text.setMovementMethod(LinkMovementMethod.getInstance());
            break;

        case 3:
            text.setText(R.string.dialog_about_license_desc);
            text.setMovementMethod(LinkMovementMethod.getInstance());
        break;
    }

    return rootView;
}
 

public boolean defaultAction(View view) {
    TextView gameStatus = (TextView) findViewById(R.id.gameStatusView);
    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    EditText editText = (EditText) findViewById(R.id.editText);
    TextView resultView = (TextView) findViewById(R.id.resultView);
    if (currentWord == null) {
        currentWord = dictionary.pickGoodStarterWord();
        anagrams = dictionary.getAnagramsWithOneMoreLetter(currentWord);
        gameStatus.setText(Html.fromHtml(String.format(START_MESSAGE, currentWord.toUpperCase(), currentWord)));
        fab.setImageResource(android.R.drawable.ic_menu_help);
        fab.hide();
        resultView.setText("");
        editText.setText("");
        editText.setEnabled(true);
        editText.requestFocus();
        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);
    } else {
        editText.setText(currentWord);
        editText.setEnabled(false);
        fab.setImageResource(android.R.drawable.ic_media_play);
        currentWord = null;
        resultView.append(TextUtils.join("\n", anagrams));
        gameStatus.append(" Hit 'Play' to start again");
    }
    return true;
}
 

@Override
public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) {
    TextView tv  = (TextView) ((Activity)mContext).findViewById(R.id.sample_output);
    if(tv == null) {
        Log.e(TAG, "TextView is null?!");
    } else if (mContext == null) {
        Log.e(TAG, "Context is null?");
    } else {
        Log.e(TAG, "Nothing is null?!");
    }

    // Reset text in case of a previous query
    tv.setText(mContext.getText(R.string.intro_message) + "\n\n");

    if (cursor.getCount() == 0) {
        return;
    }

    // Pulling the relevant value from the cursor requires knowing the column index to pull
    // it from.
    // BEGIN_INCLUDE(get_columns)
    int phoneColumnIndex = cursor.getColumnIndex(CommonDataKinds.Phone.NUMBER);
    int emailColumnIndex = cursor.getColumnIndex(CommonDataKinds.Email.ADDRESS);
    int nameColumnIndex = cursor.getColumnIndex(CommonDataKinds.Contactables.DISPLAY_NAME);
    int lookupColumnIndex = cursor.getColumnIndex(CommonDataKinds.Contactables.LOOKUP_KEY);
    int typeColumnIndex = cursor.getColumnIndex(CommonDataKinds.Contactables.MIMETYPE);
    // END_INCLUDE(get_columns)

    cursor.moveToFirst();
    // Lookup key is the easiest way to verify a row of data is for the same
    // contact as the previous row.
    String lookupKey = "";
    do {
        // BEGIN_INCLUDE(lookup_key)
        String currentLookupKey = cursor.getString(lookupColumnIndex);
        if (!lookupKey.equals(currentLookupKey)) {
            String displayName = cursor.getString(nameColumnIndex);
            tv.append(displayName + "\n");
            lookupKey = currentLookupKey;
        }
        // END_INCLUDE(lookup_key)

        // BEGIN_INCLUDE(retrieve_data)
        // The data type can be determined using the mime type column.
        String mimeType = cursor.getString(typeColumnIndex);
        if (mimeType.equals(CommonDataKinds.Phone.CONTENT_ITEM_TYPE)) {
            tv.append("\tPhone Number: " + cursor.getString(phoneColumnIndex) + "\n");
        } else if (mimeType.equals(CommonDataKinds.Email.CONTENT_ITEM_TYPE)) {
            tv.append("\tEmail Address: " + cursor.getString(emailColumnIndex) + "\n");
        }
        // END_INCLUDE(retrieve_data)

        // Look at DDMS to see all the columns returned by a query to Contactables.
        // Behold, the firehose!
        for(String column : cursor.getColumnNames()) {
            Log.d(TAG, column + column + ": " +
                    cursor.getString(cursor.getColumnIndex(column)) + "\n");
        }
    } while (cursor.moveToNext());
}
 

private void readFileAndDisplay(TextView tv) throws IOException {

		FileInputStream fis = openFileInput(fileName);
		BufferedReader br = new BufferedReader(new InputStreamReader(fis));

		String line;
		String sep = System.getProperty("line.separator");

		while (null != (line = br.readLine())) {
			tv.append(line + sep);
		}

		br.close();

	}