Android-基本布局

MainActivity

public class MainActivity extends AppCompatActivity {

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

        //隐藏标题栏
        ActionBar actionbar =getSupportActionBar();
        if (actionbar!=null){
            actionbar.hide();
        }

        Button button3 = (Button) findViewById(R.id.button3);
        button3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(MainActivity.this,Main2Activity.class);
                startActivity(intent);
            }
        });
    }
}

Main2Activity

public class Main2Activity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        Button button6 = (Button) findViewById(R.id.button6);
        button6.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(Main2Activity.this,Main3Activity.class);
                startActivity(intent);
            }
        });

    }
}

TitleLayout

public class TitleLayout extends LinearLayout {
    public TitleLayout(Context context, AttributeSet attrs){
        super(context,attrs);
        LayoutInflater.from(context).inflate(R.layout.title,this);
        Button titleBack = (Button) findViewById(R.id.title_back);
        Button titleEdit = (Button) findViewById(R.id.title_edit);
        titleBack.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                ((Activity) getContext()).finish();
            }
        });
        titleEdit.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(getContext(),"You clicked Edit button",
                        Toast.LENGTH_SHORT).show();
            }
        });
    }

}

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.ldxiaofeng.android.uilayouttest.TitleLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

    <!--线性布局-->
    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <EditText
            android:id="@+id/input_massage"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:hint="请输入"/>

        <Button
            android:id="@+id/send"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="发送"/>
    </LinearLayout>

    <!--相对布局-->
    <RelativeLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <Button
            android:id="@+id/button1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:text="Button 1"/>

        <Button
            android:id="@+id/button2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:text="Button 2"/>

        <Button
            android:id="@+id/button3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:text="帧布局"/>

        <Button
            android:id="@+id/button4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignParentLeft="true"
            android:text="Button 4" />

        <Button
            android:id="@+id/button5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignParentRight="true"
            android:text="Button 5"/>

    </RelativeLayout>

</LinearLayout>

activity_main2.xml

<!--帧布局-->
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.ldxiaofeng.android.uilayouttest.Main2Activity">

    <TextView
        android:id="@+id/text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="left"
        android:text="This is TextView"/>

    <ImageView
        android:id="@+id/image_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right"
        android:src="@mipmap/ic_launcher"/>

    <Button
        android:id="@+id/button6"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="百分比布局"/>
</FrameLayout>

activity_main3.xml

<android.support.percent.PercentFrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <Button
        android:id="@+id/button3-1"
        android:text="Button1"
        android:layout_gravity="left|top"
        app:layout_widthPercent="50%"
        app:layout_heightPercent="50%"
        />

    <Button
        android:id="@+id/button3-2"
        android:text="Button2"
        android:layout_gravity="right|top"
        app:layout_widthPercent="50%"
        app:layout_heightPercent="50%"
        />

    <Button
        android:id="@+id/button3-3"
        android:text="Button3"
        android:layout_gravity="left|bottom"
        app:layout_widthPercent="50%"
        app:layout_heightPercent="50%"
        />

    <Button
        android:id="@+id/button3-4"
        android:text="Button4"
        android:layout_gravity="right|bottom"
        app:layout_widthPercent="50%"
        app:layout_heightPercent="50%"
        />

</android.support.percent.PercentFrameLayout>

title.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/title_bg">

    <Button
        android:id="@+id/title_back"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="5dp"
        android:background="@drawable/back_bg"
        android:text="back"
        android:textColor="#fff"/>

    <TextView
        android:id="@+id/title_text"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_weight="1"
        android:gravity="center"
        android:text="Title Text"
        android:textColor="#fff"
        android:textSize="24sp"/>

    <Button
        android:id="@+id/title_edit"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="5dp"
        android:background="@drawable/edit_bg"
        android:text="edit"
        android:textColor="#fff"/>
</LinearLayout>