思路:
放一个布局在页面底部，隐藏起来。当输入法弹起来的时候，检测到布局的变化，设置插件布局的显示即可
- 在
AndroidManifest.xml里相应的Activity里加上android:windowSoftInputMode="stateHidden|adjustResize"
至于为什么是adjustResize而不是adjustSpan，看图
平时是这样
adjustResize是这样
adjustPan是这样
区别：
EditText本来在背景的L处
adjustResize会把EditText顶到G处
adjustPan，EditText还是在L处，输入法把所有布局都顶起来了。
当然这俩还有一些别的区别，这不是本文讨论的重点。
上代码
布局：
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| <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusable="true"
android:focusableInTouchMode="true">
<EditText
android:id="@+id/et"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:hint="XXXXXXXXXXXX"/>
<TextView
android:id="@+id/tv"
android:layout_alignParentBottom="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:textSize="20sp"
android:background="@android:color/holo_green_light"
android:text="bbbbbbbbbbbbbbbbbbbbbb"
android:visibility="invisible"/>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="A\nB\nC\nD\nE\nD\nF\nG\nH\nI\nJ\nK\nL\nM\nN"
android:textSize="60sp"/>
</RelativeLayout>
|
代码
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| public class MainActivity extends AppCompatActivity {
private TextView mTv;
private EditText mEt;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTv = (TextView) findViewById(R.id.tv);
mEt = (EditText) findViewById(R.id.et);
getWindow().getDecorView().getViewTreeObserver()
.addOnGlobalLayoutListener(mLayoutChangeListener);
}
ViewTreeObserver.OnGlobalLayoutListener mLayoutChangeListener = new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
Rect r = new Rect();
getWindow().getDecorView().getWindowVisibleDisplayFrame(r);
int mScreenHeight = ScreenUtils.getScreenHeight();
int heightDifference = mScreenHeight - (r.bottom - r.top);
boolean isKeyboardShowing = heightDifference > mScreenHeight / 3;
if(isKeyboardShowing){
mTv.setVisibility(View.VISIBLE);
}else{
mTv.setVisibility(View.INVISIBLE);
}
}
};
}
|
为复用方便，拎了一个工具类出来
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| public class KeyBoardPluginUtils {
public static void addKeyBoardPluginGlobal(Activity activity,LinearLayout llPlugin) {
activity.getWindow().getDecorView().getViewTreeObserver()
.addOnGlobalLayoutListener(new GlobalLayoutListener(activity,llPlugin));
}
public static void addKeyBoardPlugin(EditText et, final LinearLayout llPlugin) {
et.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
llPlugin.setVisibility(View.VISIBLE);
}else {
llPlugin.setVisibility(View.INVISIBLE);
}
}
});
}
private static class GlobalLayoutListener implements ViewTreeObserver.OnGlobalLayoutListener {
private Activity mActivity;
private LinearLayout mLlPlugin;
private GlobalLayoutListener(Activity activity, LinearLayout llPlugin) {
mActivity = activity;
mLlPlugin = llPlugin;
}
@Override
public void onGlobalLayout() {
Rect r = new Rect();
mActivity.getWindow().getDecorView().getWindowVisibleDisplayFrame(r);
int mScreenHeight = ScreenUtils.getScreenHeight();
int heightDifference = mScreenHeight - (r.bottom - r.top);
boolean isKeyboardShowing = heightDifference > mScreenHeight / 3;
if(isKeyboardShowing){
mLlPlugin.setVisibility(View.VISIBLE);
}else{
mLlPlugin.setVisibility(View.INVISIBLE);
}
}
}
}
|
