自定义标题栏

自定义标题

public class TitleActivity extends LinearLayout {

    private TextView tv_title;
    public TitleActivity(Context context) {
        super(context,null);
    }

    public TitleActivity(final Context context, AttributeSet attrs) {
        super(context, attrs);

        //引入布局
        LayoutInflater.from(context).inflate(R.layout.activity_title,this);
        Button btnBack=(Button)findViewById(R.id.btnBack);
        Button btnEdit=(Button)findViewById(R.id.btnEdit);
        btnBack.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
//                ((Activity)getContext()).finish();
                Toast.makeText(context,"点击返回，可在此处调用finish",Toast.LENGTH_SHORT).show();
            }
        });

        btnEdit.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(context,"我是提交按钮",Toast.LENGTH_SHORT).show();
            }
        });

        tv_title=(TextView)findViewById(R.id.tv_title);

    }

    //显示活的的标题
    public void setTitle(String title)
    {
        if(!TextUtils.isEmpty(title))
        {
            tv_title.setText(title);
        }
    }
}

activity_titlt.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal" android:layout_width="match_parent"
    android:layout_height="50dp"
    android:background="#00ffff"
    >
    <Button
        android:id="@+id/btnBack"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="返回"
        android:layout_alignParentLeft="true"
        />
    <TextView
        android:id="@+id/tv_title"
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="标题"
        android:layout_centerInParent="true"
        />

    <Button
        android:id="@+id/btnEdit"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="提交"
        android:layout_alignParentRight="true"
        />
</LinearLayout>

MainActivity

public class MainActivity extends AppCompatActivity {
    private TitleActivity titleActivity;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //隐藏系统的标题栏
        android.support.v7.app.ActionBar actionBar=getSupportActionBar();
        if(actionBar!=null)
        {
            actionBar.hide();
        }
//        titleActivity=(TitleActivity)findViewById(R.id.titlelayout);
    }
}

在主布局文件中引用

<....包名.....TitleActivity
    android:id="@+id/titlelayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

</...包名..TitleActivity>