MainActivity.java

package com.lfk.demo;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.ActionBarActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;

import com.lfk.demo.Activity.CartoonActivity;
import com.lfk.demo.Activity.CodeActivity;
import com.lfk.demo.Activity.EditActivity;
import com.lfk.demo.Activity.ExplorerActivity;
import com.lfk.demo.Activity.NewPaintActivity;
import com.lfk.demo.Activity.PaintViewActivity;
import com.lfk.demo.Activity.ReadActivity;
import com.lfk.demo.Activity.VerTextActivity;
import com.lfk.demo.Activity.ViewDemoActivity;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;


public class MainActivity extends ActionBarActivity implements View.OnClickListener {
    private LayoutInflater inflater;
    private final int BUFFER_SIZE = 400000;
    public static final String FILE_NAME = "codeview.java";
    public static final String READ_FILE_NAME = "exm.txt";
    public static final String PACKAGE_NAME = "com.lfk.justwetools";
    public static final String FILE_PATH = "/data"
            + Environment.getDataDirectory().getAbsolutePath() + "/"
            + PACKAGE_NAME + "/bin";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        inflater = LayoutInflater.from(this);
        findViewById(R.id.paintview_button).setOnClickListener(this);
        findViewById(R.id.explorerview_button).setOnClickListener(this);
        findViewById(R.id.codeview_button).setOnClickListener(this);
        findViewById(R.id.readerview_button).setOnClickListener(this);
        findViewById(R.id.markdown_button).setOnClickListener(this);
        findViewById(R.id.vertextview).setOnClickListener(this);
        findViewById(R.id.newPaint).setOnClickListener(this);
        findViewById(R.id.viewDemo).setOnClickListener(this);
        findViewById(R.id.cartoonDemo).setOnClickListener(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.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.about) {
            View view = inflater.inflate(R.layout.text_item, null);
            AlertDialog.Builder builder =
                    new AlertDialog.Builder(MainActivity.this)
                            .setTitle("关于JustWeTools")
                            .setView(view)
                            .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialogInterface, int i) {

                                }
                            });
            builder.show();
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    public void copytext(String name, int type) {
        try {
            File myDataPath = new File(FILE_PATH);
            if (!myDataPath.exists()) {
                myDataPath.mkdirs();
            }
            String file = myDataPath + "/" + name;
            if (!(new File(file).exists())) {
                InputStream is;
                if (type == 0) {
                    is = this.getResources().openRawResource(R.raw.codeview);
                } else {
                    is = this.getResources().openRawResource(R.raw.exm);
                }
                FileOutputStream fos = new FileOutputStream(file);
                byte[] buffer = new byte[BUFFER_SIZE];
                int count = 0;
                while ((count = is.read(buffer)) > 0) {
                    fos.write(buffer, 0, count);
                }
                fos.close();
                is.close();
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onClick(View v) {
        Intent intent = new Intent();
        switch (v.getId()) {
            case R.id.paintview_button:
                intent.setClass(MainActivity.this, PaintViewActivity.class);
                break;
            case R.id.explorerview_button:
                intent.setClass(MainActivity.this, ExplorerActivity.class);
                break;
            case R.id.codeview_button:
                copytext(FILE_NAME, 0);
                intent.setData(Uri.parse(FILE_PATH + "/" + FILE_NAME));
                intent.setClass(MainActivity.this, CodeActivity.class);
                break;
            case R.id.readerview_button:
                copytext(READ_FILE_NAME, 1);
                intent.setData(Uri.parse(FILE_PATH + "/" + READ_FILE_NAME));
                intent.setClass(MainActivity.this, ReadActivity.class);
                break;
            case R.id.markdown_button:
                intent.setClass(MainActivity.this, EditActivity.class);
                break;
            case R.id.vertextview:
                intent.setClass(MainActivity.this, VerTextActivity.class);
                break;
            case R.id.newPaint:
                intent.setClass(MainActivity.this, NewPaintActivity.class);
                break;
            case R.id.viewDemo:
                intent.setClass(MainActivity.this, ViewDemoActivity.class);
                break;
            case R.id.cartoonDemo:
                intent.setClass(MainActivity.this, CartoonActivity.class);
                break;
        }
        startActivity(intent);
    }
}