BaseActivity.java

package com.wuxiaolong.wochat.ui;

import android.app.Activity;
import android.os.Bundle;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;

import com.wuxiaolong.wochat.R;

import java.util.ArrayList;
import java.util.List;

import butterknife.ButterKnife;
import de.greenrobot.event.EventBus;

public class BaseActivity extends AppCompatActivity {
    static List<Activity> mActivityList = new ArrayList<>();
    Activity mActivity;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mActivityList.add(this);
        mActivity = this;
    }

    @Override
    public void setContentView(int layoutResID) {
        super.setContentView(layoutResID);
        ButterKnife.bind(this);
    }

    @Override
    public void setContentView(View view) {
        super.setContentView(view);
        ButterKnife.bind(this);
    }

    @Override
    public void setContentView(View view, ViewGroup.LayoutParams params) {
        super.setContentView(view, params);
        ButterKnife.bind(this);
    }

    public Toolbar initToolbar(int title) {
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        TextView toolbarTitle = (TextView) toolbar.findViewById(R.id.toolbarTitle);
        setSupportActionBar(toolbar);
        toolbarTitle.setText(title);
        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(true);
            actionBar.setDisplayShowTitleEnabled(false);
        }
        return toolbar;
    }

    public Toolbar initToolbar(CharSequence title) {
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        TextView toolbarTitle = (TextView) toolbar.findViewById(R.id.toolbarTitle);
        setSupportActionBar(toolbar);
        toolbarTitle.setText(title);
        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(true);
            actionBar.setDisplayShowTitleEnabled(false);
        }
        return toolbar;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == android.R.id.home) {
            super.onBackPressed();
            return true;
        }

        return super.onOptionsItemSelected(item);
    }


    @Override
    protected void onResume() {
        super.onResume();
        EventBus.getDefault().register(this);
    }

    @Override
    protected void onPause() {
        super.onPause();
        EventBus.getDefault().unregister(this);
    }

    public void onEvent(EmptyEvent event) {
    }

    /**
     * 因为 register event 时必须要在 activity 中声明 onEvent，所以定义了此类
     * 仅供 AVBaseActivity onEvent 使用
     */
    public class EmptyEvent {
    }

    public void showToast(String content) {
        Toast.makeText(this, content, Toast.LENGTH_SHORT).show();
    }

    /**
     * 账号退出
     */
    public static void quit() {
        for (int i = 0; i < mActivityList.size(); i++) {
            Activity activity = mActivityList.get(i);
            activity.finish();
        }
    }

    protected static boolean filterException(Exception e) {
        if (e != null) {
            return false;
        } else {
            return true;
        }
    }
}