How to analyze the event response of bottom control and upper control in Android

What this article shares with you is about how to analyze the event response of Android about underlying controls and upper controls. The editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

The figure above shows that the bottom control is a LinnerLayout, and the upper control is a number of TextView controls.

When both LinnerLayout and TextView set the click event

After clicking on each TextView, it triggers the click event of its own TextView.

After clicking LinnerLayout, the click event of LinnerLayout will be triggered.

When LinnerLayout sets the click event, but the upper TextView does not set the click event

Clicking on any area in the LinnerLayout, including clicking on TextView, triggers the click event of the LinnerLayout

Of course, relevant settings can also be made in the layout file.

When the underlying control is a layout and the upper control is a control, if you want to set the click effect, you can add android:clickable= "true" to the bottom layout, set android:clickable= "false" in the upper control, and set the state to follow the underlying layout android:duplicateParentState= "true". As for the effect, write it yourself.

The above is how to analyze the event response of the underlying control and the upper control in Android. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.