lab2:linearlayout constraintlayout tablelayout
java files:
mainActivity.java
core code:
package com.example.threelayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.content.Intent;
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
private Intent it=new Intent();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn1 = (Button) findViewById(R.id.btn1);
Button btn2 = (Button) findViewById(R.id.btn2);
Button btn3 = (Button) findViewById(R.id.btn3);
btn1.setOnClickListener(this);
btn2.setOnClickListener(this);
btn3.setOnClickListener(this);
}
@Override
public void onClick(View v){
switch (v.getId()){
case R.id.btn1:
it.setClass(MainActivity.this,layoutActivity.class);
startActivity(it);
break;
case R.id.btn2:
it.setClass(MainActivity.this,layout2Activity.class);
startActivity(it);
break;
case R.id.btn3:
it.setClass(MainActivity.this,layout3Activity.class);
startActivity(it);
break;
}
}
}
layoutActivity.java core code:
package com.example.threelayout;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
public class layoutActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout);
}
}
layout2Activity.java core code:
package com.example.threelayout;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
public class layout2Activity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout2);
}
}
layout3Activity.java core code:
package com.example.threelayout;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
public class layout3Activity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout3);
}
}
xml files
activity_main.xml core code:
```
<Button
android:id="@+id/btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="布局1"
android:onClick="onClick"/>
<Button
android:id="@+id/btn2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="布局2"
android:onClick="onClick"
/>
<Button
android:id="@+id/btn3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="布局3"
android:onClick="onClick"/>
the screenshot of main interface:
layout.xml core code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<!-- 第1行 -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/btn_one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="One,One" />
<Button
android:id="@+id/btn_two"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="3"
android:text="One,Two" />
<Button
android:id="@+id/btn_three"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="One,Three" />
<Button
android:id="@+id/btn_four"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="One,Four" />
</LinearLayout>
<!-- 第2行 -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/btn1_one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Two,One"/>
<Button
android:id="@+id/btn1_two"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="3"
android:text="Two,Two"/>
<Button
android:id="@+id/btn1_three"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Two,Three"/>
<Button
android:id="@+id/btn1_four"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Two,Four"/>
</LinearLayout>
<!-- 第3行 -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/btn2_one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Three,One"/>
<Button
android:id="@+id/btn2_two"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Three,Two"/>
<Button
android:id="@+id/btn2_three"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="2"
android:text="Three,Three"/>
<Button
android:id="@+id/btn2_four"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Three,Four"/>
</LinearLayout>
<!-- 第4行 -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="@+id/btn3_one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Four,One" />
<Button
android:id="@+id/btn3_two"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="3"
android:text="Four,Two" />
<Button
android:id="@+id/btn3_three"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Four,Three" />
<Button
android:id="@+id/btn3_four"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Four,Four" />
</LinearLayout>
</LinearLayout>
the screenshot of layout interface:
layout2.xml core code:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
android:background="#292929"
tools:context=".MainActivity">
<Button
android:id="@+id/button"
android:layout_width="79dp"
android:layout_height="79dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="292dp"
android:layout_marginRight="292dp"
android:layout_marginBottom="8dp"
android:background="#FF3030"
android:text="RED"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.972"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.026" />
<Button
android:id="@+id/button3"
android:layout_width="102dp"
android:layout_height="79dp"
android:layout_marginStart="28dp"
android:layout_marginLeft="28dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="#D2691E"
android:text="ORANGE"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.101"
app:layout_constraintStart_toEndOf="@+id/button"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.026" />
<Button
android:id="@+id/button4"
android:layout_width="86dp"
android:layout_height="80dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="#CDCD00"
android:text="YELLOW"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.932"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.026" />
<Button
android:id="@+id/button5"
android:layout_width="61dp"
android:layout_height="75dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="#66CD00"
android:text="GREEN"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.293"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.315" />
<Button
android:id="@+id/button6"
android:layout_width="54dp"
android:layout_height="78dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="#6CA6CD"
android:text="BLUE"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.53"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.312" />
<Button
android:id="@+id/button8"
android:layout_width="60dp"
android:layout_height="72dp"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="#5D478B"
android:text="INDIGO"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.141"
app:layout_constraintStart_toEndOf="@+id/button6"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.314" />
<Button
android:id="@+id/button9"
android:layout_width="398dp"
android:layout_height="52dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:text="VIOLET"
android:background="#CD6090"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.987" />
</android.support.constraint.ConstraintLayout>
the screenshot of layout2 interface:
layout3.xml core code:
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/colorPrimary"
android:stretchColumns="0"
>
<TableRow>
<TextView
android:id="@+id/row1"
android:layout_height="wrap_content"
android:layout_column="0"
android:padding="10dp"
android:text="@string/row1_name"
android:textSize="25sp" />
<TextView
android:gravity="right"
android:layout_width="wrap_content"
android:padding="10dp"
android:text="@string/row1_name2"
android:textSize="25sp" />
</TableRow>
<TableRow>
<TextView
android:id="@+id/row2"
android:layout_height="wrap_content"
android:padding="10dp"
android:textSize="25sp"
android:text="@string/row2_name"
/>
<TextView
android:gravity="right"
android:padding="10dp"
android:text="@string/row2_name2"
android:textSize="25sp" />
</TableRow>
<TableRow>
<TextView
android:id="@+id/row3"
android:layout_height="wrap_content"
android:padding="10dp"
android:textSize="25sp"
android:text="@string/row3_name"
/>
<TextView
android:gravity="right"
android:padding="10dp"
android:text="@string/row3_name2"
android:textSize="25sp" />
</TableRow>
<TableRow>
<View
android:background="@color/colorPrimaryDark"
android:layout_height="4dp"/>
<View
android:background="@color/colorPrimaryDark"
android:layout_height="4dp"/>
</TableRow>
<TableRow>
<TextView
android:id="@+id/row4"
android:layout_height="wrap_content"
android:textSize="25sp"
android:text="@string/row4_name"
/>
</TableRow>
<TableRow>
<TextView
android:id="@+id/row5"
android:layout_height="wrap_content"
android:layout_span="1"
android:textSize="25sp"
android:text="@string/row5_name"
/>
<TextView
android:gravity="right"
android:padding="10dp"
android:text="@string/row5_name2"
android:textSize="25sp" />
</TableRow>
<TableRow>
<View
android:background="@color/colorPrimaryDark"
android:layout_height="4dp"/>
<View
android:background="@color/colorPrimaryDark"
android:layout_height="4dp"/>
</TableRow>
<TableRow>
<TextView
android:id="@+id/row6"
android:layout_height="wrap_content"
android:padding="10dp"
android:textSize="25sp"
android:text="@string/row6_name"
/>
</TableRow>
</TableLayout>
the screenshot of layout3 interface:
