IntroduceActivity.java

package com.ouwenjie.note.activity;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;

import com.ouwenjie.note.R;
import com.ouwenjie.note.utils.DisplayAnimUtils;

public class IntroduceActivity extends AppCompatActivity {

    private Toolbar toolbar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_introduce);

        initToolbar();
    }

    private void initToolbar() {
        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setTitle("功能介绍");
        setSupportActionBar(toolbar);

        toolbar.setNavigationIcon(R.drawable.ic_chevron_left_white_24dp);

        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
                DisplayAnimUtils.slideRightOut(IntroduceActivity.this);
            }
        });
    }

    @Override
    protected void onResume() {
        super.onResume();

        getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);// 淡化status bar 和 navigation bar

    }

}