Android Open Source - ShowMeTweets Compose New Tweet Activity

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Back to project page ShowMeTweets.
License

The source code is released under:
MIT License
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Java Source Code

package com.fcduarte.showmetweets.activities;
//from   w  w w.j  a  v  a2s.  co  m
import java.util.Date;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.fcduarte.showmetweets.R;
import com.fcduarte.showmetweets.model.Tweet;
import com.fcduarte.showmetweets.model.User;
import com.squareup.picasso.Picasso;

public class ComposeNewTweetActivity extends Activity {
  
  private static final int MAX_CHARACTERS = 140;
  
  private ImageView mAvatarImageView;
  private TextView mNameTextView;
  private TextView mUsernameTextView;
  private EditText mTweetBody;
  private User mLoggedUser;
  private MenuItem mSendTweetMenuItem;
  private MenuItem mTotalCharactersLeftMenuItem;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_compose_new_tweet);
    
    mAvatarImageView = (ImageView) findViewById(R.id.user_avatar);
    mNameTextView = (TextView) findViewById(R.id.name);
    mUsernameTextView = (TextView) findViewById(R.id.username);
    mTweetBody = (EditText) findViewById(R.id.tweet_body);
    mTweetBody.addTextChangedListener(watcher);
    
    mLoggedUser = (User) getIntent().getSerializableExtra(HomeActivity.LOGGED_USER_KEY);
    mNameTextView.setText(mLoggedUser.getName());
    mUsernameTextView.setText(mLoggedUser.getUsernameFormatted());
    
    Picasso.with(this)
        .load(mLoggedUser.getAvatarUrl())
        .placeholder(R.drawable.user_placeholder)
        .resizeDimen(R.dimen.avatar_image_size,
            R.dimen.avatar_image_size).centerInside()
        .into(mAvatarImageView);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_compose_new_tweet, menu);
    mSendTweetMenuItem = menu.findItem(R.id.send_tweet);
    mTotalCharactersLeftMenuItem = menu.findItem(R.id.character_left);

    TextView tv  = new TextView(this);
    tv.setText(R.string.character_left);
    tv.setTextColor(Color.WHITE);
    tv.setPadding(0, 0, 20, 0);
    mTotalCharactersLeftMenuItem.setActionView(tv);

    return true;
  }
  
  public void onSendTweetClicked(MenuItem menuItem) {
    String tweetBody = mTweetBody.getText().toString();
    
    if (tweetBody.isEmpty()) {
      Toast.makeText(this, R.string.empty_tweet, Toast.LENGTH_SHORT).show();
      return;
    }
    
    Tweet tweet = new Tweet(tweetBody, new Date(), null, mLoggedUser, 0, 0, null);
    
    Intent intent = new Intent();
    intent.putExtra(HomeActivity.TWEET_KEY, tweet);
    
    setResult(RESULT_OK, intent);
    finish();
  }
  
  private TextWatcher watcher = new TextWatcher() {
    
    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
      // no-op
    }
    
    @Override
    public void beforeTextChanged(CharSequence s, int start, int count,
        int after) {
      // no-op      
    }
    
    @Override
    public void afterTextChanged(Editable s) {
      int totalCharacters = s.length();
      processCharactersLeft(totalCharacters);
    }
  };
  
  private void processCharactersLeft(int totalCharacters) {
    int charactersLeft = MAX_CHARACTERS - totalCharacters;
    boolean enabled = charactersLeft >= 0 && charactersLeft < MAX_CHARACTERS;
    mSendTweetMenuItem.setEnabled(enabled);
    
    ((TextView) mTotalCharactersLeftMenuItem.getActionView()).setText(String.valueOf(charactersLeft));
    ((TextView) mTotalCharactersLeftMenuItem.getActionView()).setTextColor(enabled ? Color.WHITE : Color.RED);
  }

  
}
Java Source Code List
