Android Open Source - SimpleLogViewer Main Activity

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From Project

Back to project page SimpleLogViewer.

License

The source code is released under:

Apache License

Java Source Code

package com.emelabs.logviewer;
//from   w  w w  . j av  a 2  s. co m
import java.io.File;
import java.util.ArrayList;
import java.util.List;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;

public class MainActivity extends Activity implements TextWatcher{

  private static final String TAG = "MainActivity";
  
  private ListView listView = null;
  private LogAdapter adapter = null;
  
  private List<Item> itemList;
  private List<Item> filterList;
  
  private EditText mySearch;
  private String searchString;
  
  private LogParser parser;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    Log.v(TAG, "[onCreate] entering...");
    
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    if (getIntent() != null && getIntent().getData() != null) {
      final String encodedPath = getIntent().getData().getEncodedPath();

      File file = new File(encodedPath);
      parser = new LogParserImp();
      List<Item> parseList = parser.parseFile(file);

      filterList = new ArrayList<Item>(parseList);
      itemList = new ArrayList<Item>(parseList);

      adapter = new LogAdapter(this, R.layout.row, filterList);

      listView = (ListView) findViewById(R.id.listview);
      listView.setAdapter(adapter);

      // priority spinner
      Spinner prioritySpinner = (Spinner) findViewById(R.id.spinnerPriorities);
      String[] objects = getResources().getStringArray(R.array.priorityNames);
      int[] images = getPriorityIcons();
      
      SpinnerAdapter dataAdapter = new SpinnerAdapter(this, R.layout.spinner_row, objects, images);
//      dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
      prioritySpinner.setAdapter(dataAdapter);      
      prioritySpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent,
                View view, int position, long id) {
              String name = (String) parent.getSelectedItem();
              filterPriority(name);
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {
            }
          });

      // search edittext
      mySearch = (EditText) findViewById(R.id.input_search_query);
      mySearch.addTextChangedListener(this);
    }
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }
  
  private void filterPriority(String priorityName){
    Log.v(TAG, "[filterPriority] entering with priority:" + priorityName);
    
    filterList.clear();
    int selectedPriority = parser.getPriorityByName(priorityName);
    
    for (Item item : itemList) {
      if(item.isShowInPriority(selectedPriority)){
        filterList.add(item);
      }
    }
    
    setAdapterToListview(filterList);
  }
  
  private void setAdapterToListview(List<Item> listToAdapter){
    adapter = new LogAdapter(this, R.layout.row, listToAdapter);
    listView.setAdapter(adapter);
  }

  private int[] getPriorityIcons(){
    TypedArray ar = getResources().obtainTypedArray(R.array.priorityIcons);
    int len = ar.length();
    int[] resIds = new int[len];
    for (int i = 0; i < len; i++){
     
        resIds[i] = ar.getResourceId(i, 0);
    }
    ar.recycle();
    return resIds;
  }
  
  //***********************************************************************************
  //*********************************** TextWatcher ***********************************
  //***********************************************************************************
  @Override
  public void beforeTextChanged(CharSequence s, int start, int count,
      int after) {
  }

  @Override
  public void onTextChanged(CharSequence s, int start, int before, int count) {
    
  }

  @SuppressLint("DefaultLocale")
  @Override
  public void afterTextChanged(Editable s) {
    filterList.clear();
    searchString = mySearch.getText().toString().trim().replaceAll("\\s", "").toLowerCase();
    if (searchString.length() > 0) {
      for (Item item : itemList) {
        if(item.getTag().toLowerCase().contains(searchString) || 
            item.getMessage().toLowerCase().contains(searchString)){
          filterList.add(item);
        }
      }
      
      Log.d(TAG, "[afterTextChanged] setting filter list");
      setAdapterToListview(filterList);
    }else{
      Log.d(TAG, "[afterTextChanged] setting item list");
      filterList.clear();
      setAdapterToListview(itemList);
    }
  }
  
  //***********************************************************************************
  //********************************* Spinner Adapter *********************************
  //***********************************************************************************
  public class SpinnerAdapter extends ArrayAdapter<String>{

    String[] objects;
    int[] images;
    
    public SpinnerAdapter(Context context, int textViewResourceId, String[] objects, int[] images) {
        super(context, textViewResourceId, objects);
        this.objects = objects;
        this.images = images;
    }
    
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
      return getCustomView(position, convertView, parent);
    }
    
    @Override
    public View getDropDownView(int position, View convertView,
        ViewGroup parent) {
      return getCustomView(position, convertView, parent);
    }
    
    public View getCustomView(int position, View convertView, ViewGroup parent) {
      LayoutInflater inflater = getLayoutInflater();
      View row = inflater.inflate(R.layout.spinner_row, parent, false);
      TextView label = (TextView) row.findViewById(R.id.tvSpinnerText);
      label.setText(this.objects[position]);

      ImageView iv = (ImageView) row.findViewById(R.id.ivSpinnerPriority);
      iv.setImageResource(this.images[position]);

      return row;
    }
  }
  
}

Java Source Code List

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