EditText的大小不适合内容

Question

我有一个动态创建的EditText的小问题，我通过我创建的小键盘输入文本，取代原来的Android。文本是插入的附加，但EditText的大小不适合文本。为什么？

与此解决方案：

EditText et = new EditText(myContext); 

LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 

et.setLayoutParams(params); 

我有这样的错误：

E/AndroidRuntime(9544): FATAL EXCEPTION: main 
E/AndroidRuntime(9544): java.lang.ClassCastException: android.view.ViewGroup$LayoutParams cannot be cast to android.widget.TableRow$LayoutParams 
E/AndroidRuntime(9544):  at android.widget.TableRow.mapIndexAndColumns(TableRow.java:162) 
E/AndroidRuntime(9544):  at android.widget.TableRow.getVirtualChildCount(TableRow.java:147) 
E/AndroidRuntime(9544):  at android.widget.TableRow.getColumnsWidths(TableRow.java:287) 
E/AndroidRuntime(9544):  at android.widget.TableLayout.findLargestCells(TableLayout.java:500) 
E/AndroidRuntime(9544):  at android.widget.TableLayout.measureVertical(TableLayout.java:465) 
E/AndroidRuntime(9544):  at android.widget.TableLayout.onMeasure(TableLayout.java:431) 
E/AndroidRuntime(9544):  at android.view.View.measure(View.java:12723) 
E/AndroidRuntime(9544):  at android.widget.ScrollView.measureChildWithMargins(ScrollView.java:1163) 
E/AndroidRuntime(9544):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:293) 
E/AndroidRuntime(9544):  at android.widget.ScrollView.onMeasure(ScrollView.java:312) 
E/AndroidRuntime(9544):  at android.view.View.measure(View.java:12723) 
E/AndroidRuntime(9544):  at android.widget.HorizontalScrollView.measureChildWithMargins(HorizontalScrollView.java:1159) 
E/AndroidRuntime(9544):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:293) 
E/AndroidRuntime(9544):  at android.widget.HorizontalScrollView.onMeasure(HorizontalScrollView.java:303) 
E/AndroidRuntime(9544):  at android.view.View.measure(View.java:12723) 
E/AndroidRuntime(9544):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 
E/AndroidRuntime(9544):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:293) 
E/AndroidRuntime(9544):  at android.view.View.measure(View.java:12723) 
E/AndroidRuntime(9544):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 
E/AndroidRuntime(9544):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:293) 
E/AndroidRuntime(9544):  at android.view.View.measure(View.java:12723) 
E/AndroidRuntime(9544):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 
E/AndroidRuntime(9544):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1369) 
E/AndroidRuntime(9544):  at android.widget.LinearLayout.measureVertical(LinearLayout.java:660) 
E/AndroidRuntime(9544):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:553) 
E/AndroidRuntime(9544):  at android.view.View.measure(View.java:12723) 
E/AndroidRuntime(9544):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 
E/AndroidRuntime(9544):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:293) 
E/AndroidRuntime(9544):  at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2092) 
E/AndroidRuntime(9544):  at android.view.View.measure(View.java:12723) 
E/AndroidRuntime(9544):  at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1064) 
E/AndroidRuntime(9544):  at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2442) 
E/AndroidRuntime(9544):  at android.os.Handler.dispatchMessage(Handler.java:99) 
E/AndroidRuntime(9544):  at android.os.Looper.loop(Looper.java:137) 
E/AndroidRuntime(9544):  at android.app.ActivityThread.main(ActivityThread.java:4624) 
E/AndroidRuntime(9544):  at java.lang.reflect.Method.invokeNative(Native Method) 
E/AndroidRuntime(9544):  at java.lang.reflect.Method.invoke(Method.java:511) 
E/AndroidRuntime(9544):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 
E/AndroidRuntime(9544):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556) 
E/AndroidRuntime(9544):  at dalvik.system.NativeStart.main(Native Method) 

Answer 1

import android.widget.LinearLayout.LayoutParams; 

参数添加到WRAP_CONTENT。并设置所需的高度布局，填充或包装。第一个是宽度，第二个是高度。

EditText et = new EditText(myContext); 

LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 

et.setLayoutParams(params);