Transform views in 2D and 3D, scaling them, translating them, and rotating them (in 2D and 3D). : SeekBar « UI « Android






Transform views in 2D and 3D, scaling them, translating them, and rotating them (in 2D and 3D).

   
 
/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.apis.view;

// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R;

import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.SeekBar;

/**
 * This application demonstrates the ability to transform views in 2D and 3D, scaling them,
 * translating them, and rotating them (in 2D and 3D). Use the seek bars to set the various
 * transform properties of the button.
 */
public class RotatingButton extends Activity {

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.rotating_view);
        final Button rotatingButton = (Button) findViewById(R.id.rotatingButton);
        SeekBar seekBar;
        seekBar = (SeekBar) findViewById(R.id.translationX);
        seekBar.setMax(400);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            public void onStopTrackingTouch(SeekBar seekBar) {
            }

            public void onStartTrackingTouch(SeekBar seekBar) {
            }

            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                rotatingButton.setTranslationX((float)progress);
            }
        });
        seekBar = (SeekBar) findViewById(R.id.translationY);
        seekBar.setMax(800);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

            public void onStopTrackingTouch(SeekBar seekBar) {
            }

            public void onStartTrackingTouch(SeekBar seekBar) {
            }

            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                rotatingButton.setTranslationY((float)progress);
            }
        });
        seekBar = (SeekBar) findViewById(R.id.scaleX);
        seekBar.setMax(50);
        seekBar.setProgress(10);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

            public void onStopTrackingTouch(SeekBar seekBar) {
            }

            public void onStartTrackingTouch(SeekBar seekBar) {
            }

            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                rotatingButton.setScaleX((float)progress/10f);
            }
        });
        seekBar = (SeekBar) findViewById(R.id.scaleY);
        seekBar.setMax(50);
        seekBar.setProgress(10);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

            public void onStopTrackingTouch(SeekBar seekBar) {
            }

            public void onStartTrackingTouch(SeekBar seekBar) {
            }

            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                rotatingButton.setScaleY((float)progress/10f);
            }
        });
        seekBar = (SeekBar) findViewById(R.id.rotationX);
        seekBar.setMax(360);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

            public void onStopTrackingTouch(SeekBar seekBar) {
            }

            public void onStartTrackingTouch(SeekBar seekBar) {
            }

            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                // prevent seeking on app creation
                rotatingButton.setRotationX((float)progress);
            }
        });
        seekBar = (SeekBar) findViewById(R.id.rotationY);
        seekBar.setMax(360);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

            public void onStopTrackingTouch(SeekBar seekBar) {
            }

            public void onStartTrackingTouch(SeekBar seekBar) {
            }

            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                // prevent seeking on app creation
                rotatingButton.setRotationY((float)progress);
            }
        });
        seekBar = (SeekBar) findViewById(R.id.rotationZ);
        seekBar.setMax(360);
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

            public void onStopTrackingTouch(SeekBar seekBar) {
            }

            public void onStartTrackingTouch(SeekBar seekBar) {
            }

            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                // prevent seeking on app creation
                rotatingButton.setRotation((float)progress);
            }
        });
    }
}
//layout/rotating_view.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2010 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/container"
    android:splitMotionEvents="true"
    >
    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dip"
        android:splitMotionEvents="true"
        >
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="5dip"
            android:paddingRight="5dip"
            android:textStyle="bold"
            android:text="TX"
            />
        <SeekBar
            android:orientation="horizontal"
            android:layout_weight="1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/translationX"
        />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="15dip"
            android:paddingRight="5dip"
            android:textStyle="bold"
            android:text="TY"
            />
        <SeekBar
            android:orientation="horizontal"
            android:layout_weight="1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/translationY"
        />
    </LinearLayout>
    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dip"
        android:splitMotionEvents="true"
        >
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="5dip"
            android:paddingRight="5dip"
            android:textStyle="bold"
            android:text="SX"
            />
        <SeekBar
            android:orientation="horizontal"
            android:layout_weight="1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/scaleX"
        />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="15dip"
            android:paddingRight="5dip"
            android:textStyle="bold"
            android:text="SY"
            />
        <SeekBar
            android:orientation="horizontal"
            android:layout_weight="1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/scaleY"
        />
    </LinearLayout>
    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dip"
        android:splitMotionEvents="true"
        >
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="5dip"
            android:paddingRight="5dip"
            android:textStyle="bold"
            android:text="X"
            />
        <SeekBar
            android:orientation="horizontal"
            android:layout_weight="1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/rotationX"
        />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="15dip"
            android:paddingRight="5dip"
            android:textStyle="bold"
            android:text="Y"
            />
        <SeekBar
            android:orientation="horizontal"
            android:layout_weight="1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/rotationY"
        />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="15dip"
            android:paddingRight="5dip"
            android:textStyle="bold"
            android:text="Z"
            />
        <SeekBar
            android:orientation="horizontal"
            android:layout_weight="1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/rotationZ"
        />
    </LinearLayout>
    <Button
        android:layout_width="200dip"
        android:layout_height="150dip"
        android:layout_marginLeft="50dip"
        android:layout_marginTop="50dip"
        android:text="Rotating Button"
        android:id="@+id/rotatingButton"
        />
</LinearLayout>

   
    
    
  








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