SeekBar1.java

← Back

The file containing the source code shown below is located in the corresponding directory in <sdk>/samples/android-<version>/...

/*
 * Copyright (C) 2007 The Android开源工程
 *
 * 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;

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

import com.example.android.apis.R;


/**
 * Demonstrates how to use a seek bar
 */
public class SeekBar1 extends Activity implements SeekBar.OnSeekBarChangeListener {

    SeekBar mSeekBar;
    TextView mProgressText;
    TextView mTrackingText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.seekbar_1);

        mSeekBar = (SeekBar)findViewById(R.id.seek);
        mSeekBar.setOnSeekBarChangeListener(this);
        mProgressText = (TextView)findViewById(R.id.progress);
        mTrackingText = (TextView)findViewById(R.id.tracking);
    }

    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromTouch) {
        mProgressText.setText(progress + " " + 
                getString(R.string.seekbar_from_touch) + "=" + fromTouch);
    }

    public void onStartTrackingTouch(SeekBar seekBar) {
        mTrackingText.setText(getString(R.string.seekbar_tracking_on));
    }

    public void onStopTrackingTouch(SeekBar seekBar) {
        mTrackingText.setText(getString(R.string.seekbar_tracking_off));
    }
}