android中的字体闪烁效果和跑马灯效果

Dear 丶 2024-02-17 17:29 1阅读 0赞

![Center][]

代码：MainActivity

package com.wsj.textviewdmeo;
    
    import java.util.Timer;
    import java.util.TimerTask;
    
    import android.os.Bundle;
    import android.app.Activity;
    import android.graphics.Color;
    import android.widget.TextView;
    
    public class MainActivity extends Activity {
    
    	private TextView tv_text;
    	private int clo = 0;
    
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.activity_main);
    		tv_text = (TextView) findViewById(R.id.tv_text);
    		shark();
    	}
    
    	private void shark() {
    		Timer timer = new Timer();
    		TimerTask taskcc = new TimerTask() {
    			public void run() {
    				runOnUiThread(new Runnable() {
    					public void run() {
    						if (clo == 0) {
    							clo = 1;
    							tv_text.setTextColor(Color.TRANSPARENT);
    						} else {
    							if (clo == 1) {
    
    								clo = 2;
    								tv_text.setTextColor(Color.YELLOW);
    							} else if (clo == 2) {
    
    								clo = 3;
    								tv_text.setTextColor(Color.RED);
    
    							} else {
    								clo = 0;
    								tv_text.setTextColor(Color.BLUE);
    							}
    						}
    					}
    				});
    			}
    		};
    		timer.schedule(taskcc, 1, 100);  //<span style="color: rgb(85, 85, 85); font-family: 'microsoft yahei'; font-size: 15px; line-height: 35px;">第二个参数分别是delay（多长时间后执行），第三个参数是：duration（执行间隔）单位为：ms</span>
    	}
    }

跑马灯效果：需要在TextView中设置宽度 当文本超过宽度的时候跑马灯

[Center]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/30/95f03a8f6bd645b48fd8635279b096b7.png