android baseActivity

package newdemo.jeno.designdemo.activitynew;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.ImageView; 
import android.widget.TextView;

import newdemo.jeno.designdemo.R;
import newdemo.jeno.designdemo.view.ToolBarBean;

/**
 * 
 */
public abstract class BaseActivity extends AppCompatActivity {

    private TextView tvTitle;
    private ImageView ivTopBack;
    private Toolbar toolbar;
    private ToolBarBean toolBarBean;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //此为积累的activity
        setContentView(getLayout());
        inintData();
    }


    /**
     * 得到布局文件
     *
     * @return
     */
    public abstract int getLayout();

    /**
     * 初始化view
     */
    protected abstract void inintData();


    protected <T extends View> T findView(int resourcesId) {
        return (T) findViewById(resourcesId);
    }


    protected ToolBarBean getToolbar() {
        if (toolBarBean == null) {
            toolbar = (Toolbar) findViewById(R.id.toolbar);
            toolBarBean = new ToolBarBean(this, toolbar);
        }
        return toolBarBean;
    }

}

/**
 *
 */
public class ToolBarBean {
    private TextView tvTitle;
    private ImageView ivToolbarBack;
    private AppCompatActivity context;
    private Toolbar toolbar;

    public ToolBarBean(AppCompatActivity context, Toolbar toolbar) {
        this.context = context;
        this.toolbar = toolbar;
        context.setSupportActionBar(toolbar);
        context.getSupportActionBar().setDisplayShowTitleEnabled(false);
        ivToolbarBack = (ImageView) toolbar.findViewById(R.id.iv_topBack);
        tvTitle = (TextView) toolbar.findViewById(R.id.tvTitle);

    }


    /**
     * 进行回退
     */
    public ToolBarBean setBack() {
        ivToolbarBack.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                context.finish();
            }
        });
        return this;
    }

    /**
     * 设置标题
     */
    public ToolBarBean setTitle(String title) {
        tvTitle.setText(title);
        return this;
    }

    /**
     * 自定义的回退
     */
    public ToolBarBean setCustomBack(View.OnClickListener onClickListener) {
        ivToolbarBack.setOnClickListener(onClickListener);
        return this;
    }
}

    }
}