android performClick使用说明

[java] view plain copy print?

1. <pre class="java" name="code" snippet_file_name="blog_20170413_1_8084624" code_snippet_id="2330596"> performClick 是使用代码主动去调用控件的点击事件（模拟人手去触摸控件）  
2. boolean android.view.View.performClick()  
3.   
4. Call this view's OnClickListener, if it is defined.  
5. Returns:  
6. True there was an assigned OnClickListener that was called, false otherwise is returned.  
7. ---------------------------------------------  
8. @Override  
9. protected void onCreate(Bundle savedInstanceState) {  
10. <span style="white-space: pre;">    </span>super.onCreate(savedInstanceState);  
11. <span style="white-space: pre;">    </span>setContentView(R.layout.activity_my);  
12. <span style="white-space: pre;">    </span>btn1 = (Button) findViewById(R.id.button1);  
13. <span style="white-space: pre;">    </span>tv1 = (TextView) findViewById(R.id.textView1);  
14. <span style="white-space: pre;">    </span>btn1.setOnClickListener(new OnClickListener() {  
15. <span style="white-space: pre;">    </span>@Override  
16. <span style="white-space: pre;">    </span>public void onClick(View v) {  
17. <span style="white-space: pre;">    </span>tv1.setText("已经被点击过了");  
18. <span style="white-space: pre;">    </span>}  
19. <span style="white-space: pre;">    </span>});</pre><pre class="java" name="code" snippet_file_name="blog_20170413_2_2480253" code_snippet_id="2330596"><pre class="java" name="code" snippet_file_name="blog_20170413_2_2480253" code_snippet_id="2330596"><span style="white-space: pre;">    </span>btn1.performClick();</pre>}  
20. <pre></pre>  
21. <pre class="java" name="code" snippet_file_name="blog_20170413_3_7605447" code_snippet_id="2330596"><span style="color: rgb(51, 51, 51); font-family: Tahoma; font-size: 18px;">performClick需要写在<span style="color: rgb(51, 51, 51); font-family: Tahoma; font-size: 18px;">setOnClickListener的声明后面</span></span>  
22. </pre>  
23. <pre></pre>  
24.      
25. </pre>