1.創建 layout_title.xml(自定義標題視圖)
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout_titlebar"
android:layout_width="match_parent"
android:layout_height="52dp"
android:background="#ed4255">
<TextView
android:id="@+id/text_title"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:ellipsize="marquee"
android:gravity="center_horizontal|center"
android:singleLine="true"
android:text="標題欄"
android:textColor="#ffffffff"
android:textSize="20dp" />
<Button
android:id="@+id/button_backward"
android:layout_width="70dp"
android:layout_height="match_parent"
android:drawablePadding="6dp"
android:ellipsize="end"
android:gravity="center"
android:onClick="onClick"
android:paddingLeft="5dp"
android:singleLine="true"
android:text="返回"
android:background="#ED4255"
android:textColor="#ffffffff"
android:textSize="18dp"
android:visibility="invisible" />
<!--android:background="@drawable/title_button_selector"
android:drawableLeft="@drawable/back_arrow"-->
<Button
android:id="@+id/button_forward"
android:layout_width="70dp"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:drawablePadding="6dp"
android:ellipsize="end"
android:gravity="center"
android:onClick="onClick"
android:paddingLeft="5dp"
android:singleLine="true"
android:text="提交"
android:textColor="#ffffffff"
android:textSize="18dp"
android:background="#ED4255"
android:visibility="invisible" />
<!-- android:background="@drawable/title_button_selector"-->
</RelativeLayout>
2.創建 TitleActivity
package com.example.titleactivitydemo2;
import android.app.Activity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.TextView;
import android.widget.Toast;
public class TitleActivity extends Activity implements View.OnClickListener {
//private RelativeLayout mLayoutTitleBar;
private TextView mTitleTextView;
private Button mBackwardbButton;
private Button mForwardButton;
private FrameLayout mContentLayout;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setupViews();//加載 activity_title 佈局 ,並獲取標題及兩側按鈕
}
private void setupViews() {
super.setContentView(R.layout.activity_title);
mTitleTextView = (TextView) findViewById(R.id.text_title);
mContentLayout = (FrameLayout) findViewById(R.id.layout_content);
mBackwardbButton = (Button) findViewById(R.id.button_backward);
mForwardButton = (Button) findViewById(R.id.button_forward);
}
/**
* 是否顯示返回按鈕
*
* @param backwardResid 文字
* @param show true則顯示
*/
protected void showBackwardView(int backwardResid, boolean show) {
if (mBackwardbButton != null) {
if (show) {
mBackwardbButton.setText(backwardResid);
mBackwardbButton.setVisibility(View.VISIBLE);
} else {
mBackwardbButton.setVisibility(View.INVISIBLE);
}
} // else ignored
}
/**
* 提供是否顯示提交按鈕
*
* @param forwardResId 文字
* @param show true則顯示
*/
protected void showForwardView(int forwardResId, boolean show) {
if (mForwardButton != null) {
if (show) {
mForwardButton.setVisibility(View.VISIBLE);
mForwardButton.setText(forwardResId);
} else {
mForwardButton.setVisibility(View.INVISIBLE);
}
} // else ignored
}
/**
* 返回按鈕點擊後觸發
*
* @param backwardView
*/
protected void onBackward(View backwardView) {
Toast.makeText(this, "點擊返回,可在此處調用finish()", Toast.LENGTH_SHORT).show();
//finish();
}
/**
* 提交按鈕點擊後觸發
*
* @param forwardView
*/
protected void onForward(View forwardView) {
Toast.makeText(this, "點擊提交", Toast.LENGTH_SHORT).show();
}
//設置標題內容
@Override
public void setTitle(int titleId) {
mTitleTextView.setText(titleId);
}
//設置標題內容
@Override
public void setTitle(CharSequence title) {
mTitleTextView.setText(title);
}
//設置標題文字顏色
@Override
public void setTitleColor(int textColor) {
mTitleTextView.setTextColor(textColor);
}
//取出FrameLayout並調用父類removeAllViews()方法
@Override
public void setContentView(int layoutResID) {
mContentLayout.removeAllViews();
View.inflate(this, layoutResID, mContentLayout);
onContentChanged();
}
@Override
public void setContentView(View view) {
mContentLayout.removeAllViews();
mContentLayout.addView(view);
onContentChanged();
}
/* (non-Javadoc)
* @see android.app.Activity#setContentView(android.view.View, android.view.ViewGroup.LayoutParams)
*/
@Override
public void setContentView(View view, ViewGroup.LayoutParams params) {
mContentLayout.removeAllViews();
mContentLayout.addView(view, params);
onContentChanged();
}
/* (non-Javadoc)
* @see android.view.View.OnClickListener#onClick(android.view.View)
* 按鈕點擊調用的方法
*/
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button_backward:
onBackward(v);
break;
case R.id.button_forward:
onForward(v);
break;
default:
break;
}
}
}
3.MainActivity繼承TitleActivity
package com.example.titleactivitydemo2;
import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends TitleActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setTitle("標題欄");
setTitleColor(Color.BLUE);
showBackwardView(R.string.text_back,true);
showForwardView(R.string.text_forward,true);
}
}