在 Android 应用程序中设置初始焦点

在我的 Android 应用程序中，它会自动聚焦我的布局中的第一个 Button，给它一个橙色的轮廓。如何最好用 XML 设置初始焦点，是否可以什么都不设置？

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最佳答案

You could use the requestFocus tag:

<Button ...>
<requestFocus />
</Button>

I find it odd though that it auto-focuses one of your buttons, I haven't observed that behavior in any of my views.

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Set both :focusable and :focusableInTouchMode to true and call requestFocus. It does the trick.

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@Someone Somewhere I used this to clear focus:

editText.clearFocus();

and it helps

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@Someone Somewhere, I tried all of the above to no avail. The fix I found is from http://www.helloandroid.com/tutorials/remove-autofocus-edittext-android . Basically, you need to create an invisible layout just above the problematic Button:

<LinearLayout android:focusable="true"
android:focusableInTouchMode="true"
android:layout_width="0px"
android:layout_height="0px" >
<requestFocus />
</LinearLayout>

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Use the code below,

TableRow _tableRow =(TableRow)findViewById(R.id.tableRowMainBody);
tableRow.requestFocus();

that should work.

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I just add this line of code into onCreate():

this.getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);

Problem solved.

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I found this worked best for me.

In AndroidManifest.xml <activity> element add android:windowSoftInputMode="stateHidden"

This always hides the keyboard when entering the activity.

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android:focusedByDefault="true"