我的错误如下所示
01-24 10:07:51.053: E/AndroidRuntime(809): FATAL EXCEPTION: main
01-24 10:07:51.053: E/AndroidRuntime(809): java.lang.IllegalStateException: Could not find a method res/drawable-hdpi/textfield_activated_holo_light.9.png(View) in the activity class com.example.iolcalci.Selection for onClick handler on view class android.widget.EditText with id 'k1_editText'
01-24 10:07:51.053: E/AndroidRuntime(809): at android.view.View$1.onClick(View.java:3584)
01-24 10:07:51.053: E/AndroidRuntime(809): at android.view.View.performClick(View.java:4202)
01-24 10:07:51.053: E/AndroidRuntime(809): at android.view.View$PerformClick.run(View.java:17340)
01-24 10:07:51.053: E/AndroidRuntime(809): at android.os.Handler.handleCallback(Handler.java:725)
01-24 10:07:51.053: E/AndroidRuntime(809): at android.os.Handler.dispatchMessage(Handler.java:92)
01-24 10:07:51.053: E/AndroidRuntime(809): at android.os.Looper.loop(Looper.java:137)
01-24 10:07:51.053: E/AndroidRuntime(809): at android.app.ActivityThread.main(ActivityThread.java:5039)
01-24 10:07:51.053: E/AndroidRuntime(809): at java.lang.reflect.Method.invokeNative(Native Method)
01-24 10:07:51.053: E/AndroidRuntime(809): at java.lang.reflect.Method.invoke(Method.java:511)
01-24 10:07:51.053: E/AndroidRuntime(809): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
01-24 10:07:51.053: E/AndroidRuntime(809): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
01-24 10:07:51.053: E/AndroidRuntime(809): at dalvik.system.NativeStart.main(Native Method)
01-24 10:07:51.053: E/AndroidRuntime(809): Caused by: java.lang.NoSuchMethodException: res/drawable-hdpi/textfield_activated_holo_light.9.png [class android.view.View]
01-24 10:07:51.053: E/AndroidRuntime(809): at java.lang.Class.getConstructorOrMethod(Class.java:460)
01-24 10:07:51.053: E/AndroidRuntime(809): at java.lang.Class.getMethod(Class.java:915)
01-24 10:07:51.053: E/AndroidRuntime(809): at android.view.View$1.onClick(View.java:3577)
01-24 10:07:51.053: E/AndroidRuntime(809): ... 11 more
请帮助我，我是android开发的初学者。我不认为代码中有错误。
我的代码在这里
public class Selection extends Activity {
private EditText k1_e,k2_e,al_e,alconst_e,dr_e;
private float k1,k2,al,al_const,dr,Avg_k,IOLPower;
private Spinner spin;
private Button result;
private int spinSelected=-1;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.selective);
}
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
spin=(Spinner)findViewById(R.id.formulae);
spin.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int pos,
long id) {
// TODO Auto-generated method stub
spinSelected=pos;
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
spinSelected=-1;
}
});
result=(Button)findViewById(R.id.result);
result.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int flag = 0;
String op="INVALID INPUT";
dr_e=(EditText)findViewById(R.id.dr_editText);
k1_e=(EditText)findViewById(R.id.k1_editText);
k2_e=(EditText)findViewById(R.id.k2_editText);
al_e=(EditText)findViewById(R.id.al_editText);
alconst_e=(EditText)findViewById(R.id.al_const_editText);
k1_e.isClickable();
k2_e.isClickable();
al_e.isClickable();
alconst_e.isClickable();
if(dr_e.getText().toString().length()==0|k1_e.getText().toString().length()==0|k2_e.getText().toString().length()==0|al_e.getText().toString().length()==0|alconst_e.getText().toString().length()==0){
flag=1;
}else{
dr=Float.parseFloat(dr_e.getText().toString());
k1=Float.parseFloat(k1_e.getText().toString());
k2=Float.parseFloat(k2_e.getText().toString());
al=Float.parseFloat(al_e.getText().toString());
al_const=Float.parseFloat(alconst_e.getText().toString());
}
Avg_k=(k1+k2)/2;
if(spinSelected==0){
IOLPower=Srkt();
Intent iSrkt=new Intent(Selection.this,Srkt.class);
if(flag!=1){
iSrkt.putExtra("RESULT", IOLPower);
}else{
iSrkt.putExtra("FLAG", flag);
iSrkt.putExtra("RESULT", op);
}
startActivity(iSrkt);
}else if(spinSelected==1){
IOLPower=Binkhorst();
Intent iBinkhorst=new Intent(Selection.this,Binkhorst.class);
if(flag!=1){
iBinkhorst.putExtra("RESULT", IOLPower);
}else{
iBinkhorst.putExtra("FLAG", flag);
iBinkhorst.putExtra("RESULT", op);
}
startActivity(iBinkhorst);
}else if(spinSelected==2){
IOLPower=Srk2();
Intent iSrk2=new Intent(Selection.this,Srk2.class);
if(flag!=1){
iSrk2.putExtra("RESULT", IOLPower);
}else{
iSrk2.putExtra("FLAG", flag);
iSrk2.putExtra("RESULT", op);
}
startActivity(iSrk2);
}else{
IOLPower=Holladay();
Intent iHolladay=new Intent(Selection.this,Holladay.class);
if(flag!=1){
iHolladay.putExtra("RESULT", IOLPower);
}else{
iHolladay.putExtra("FLAG", flag);
iHolladay.putExtra("RESULT", op);
}
startActivity(iHolladay);
}
}
});
}
public static float Round(float Rval, int Rpl) {
float p = (float)Math.pow(10,Rpl);
Rval = Rval * p;
float tmp = Math.round(Rval);
return (float)tmp/p;
}
public float Srkt(){
float Rcor;
float Lcor;
float Crwdest;
float Corneal_H;
float Acd_Const;
float Offset;
float Acd_Est;
float Na=(float) 1.336;
float C2=(float) 0.3333;
float C3;
float C4;
float C5;
float C6;
float C8;
float C9;
float Iolam;
float Rcor1=(float)(337.5/Avg_k);Rcor=Round(Rcor1,2);
if(al<=24.2){
Lcor=al;
}else{
Lcor=(float) (-3.446+1.716*al-0.0237*(al*al));
}Lcor=Round(Lcor,2);
Crwdest=(float) (-5.41+0.58412*Lcor+0.098*Avg_k);Crwdest=Round(Crwdest,2);
Corneal_H=(float) (Rcor-(Math.sqrt(Rcor*Rcor-Crwdest*Crwdest/4)));Corneal_H=Round(Corneal_H,2);
Acd_Const=(float) (0.62467*al_const-68.747);
Offset=(float) (Acd_Const-3.336);Offset=Round(Offset,2);
Acd_Est=(Corneal_H+Offset); float Acd_Est1=Round(Acd_Est,2);
C3=(float) (0.97971*al+0.65696);C3=Round(C3,2);
C4=C3-Acd_Est1;C4=Round(C4,2);
C5=(float) ((Na*Rcor)-(C2*Acd_Est)); C5=Round(C5, 2);
C6=(float) ((Na*Rcor1)-(C2*C3));
C8=(float) ((12*C6)+(C3*Rcor1));C8=Round(C8,2);
C9=(float) ((12*C5)+(Acd_Est*Rcor1));C9=Round(C9,2);
Iolam=(float) ((1336*(C6-(0.001*C8*dr)))/(C4*(C5-(0.001*dr*C9))));Iolam=Round(Iolam,2);
Log.i("value",String.valueOf(Avg_k));
Log.i("value",String.valueOf(Rcor));
Log.i("value",String.valueOf(Lcor));
Log.i("value",String.valueOf(Crwdest));
Log.i("value",String.valueOf(Corneal_H));
Log.i("value",String.valueOf(Acd_Const));
Log.i("value",String.valueOf(Offset));
Log.i("value",String.valueOf(Acd_Est));
Log.i("value",String.valueOf(Na));
Log.i("value",String.valueOf(C2));
Log.i("value",String.valueOf(C3));
Log.i("value",String.valueOf(C4));
Log.i("value",String.valueOf(C5));
Log.i("value",String.valueOf(C6));
Log.i("value",String.valueOf(C8));
Log.i("value",String.valueOf(C9));
Log.i("value",String.valueOf(Iolam));
return(Iolam);
}
public float Binkhorst(){
float K1;
float LB2;
float ACDbnk;
float xb;
float yb;
float em;
K1=(float)(337.5/Avg_k);
LB2=(float) (al+0.1984);
if(LB2>=26){
ACDbnk=(float) (((0.58357*al_const)-63.896)*1.1087);
}else{
ACDbnk=(float) (((0.58357*al_const)-63.896)*LB2/23.45);
}
xb=(float) (1336*((1.336*K1-0.3333*LB2)-0.001*dr*(16.032*K1-4*LB2+LB2*K1)));
yb=(float) ((LB2-ACDbnk)*(1.336*K1-0.3333*ACDbnk-0.001*dr*(16.032*K1-4*ACDbnk+ACDbnk*K1)));
em=xb/yb;em=Round(em,2);
return(em);
}
public float Srk2(){
float X25 = 0;
float Avg_k=(k1+k2)/2;
if(al<20.0){
X25=al_const+3;
}else if((al>=20.0)&&(al<21.0)){
X25=al_const+2;
}else if((al>=21.0)&&(al<22.0)){
X25=al_const+1;
}else if((al>=22.0)&&(al<24.5)){
X25=al_const;
}else if(al>=24.5){
X25=(float) (al_const-(0.5));
}else{
Toast.makeText(getApplicationContext(), "Please enter valid AL value", Toast.LENGTH_SHORT).show();
}
float SRK2 = (float) (X25-(0.9*Avg_k+2.5*al));
return(SRK2);
}
public float Holladay(){
float K;
float Lhol;
float SF;
float Rag;
float AGx;
float AG;
float ACDH;
float CAhol;
float xh;
float yh;
float K1=(float)(337.5/Avg_k);K=Round(K1,2);
Lhol=(float) (al+0.2);
SF=(float) ((0.5663*al_const)-65.6);
if(K<7){
Rag=7;
}else{
Rag=K;
}
AGx=(float) (al*0.533);
if(AGx>13.5){
AG=(float) 13.5;
}else{
AG=AGx;
}
ACDH=(float) (0.56+Rag-(Math.sqrt(Rag*Rag-AG*AG/4)));
CAhol=ACDH+SF;
xh=(float) (1336*((1.336*K1-0.3333*Lhol)-0.001*dr*(16.032*K1-4*Lhol+Lhol*K1)));
yh=(float) ((Lhol-CAhol)*(1.336*K1-0.3333*CAhol-0.001*dr*(16.032*K1-4*CAhol+CAhol*K1)));
float em=xh/yh;em=Round(em,2);
return(em);
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
dr_e=(EditText)findViewById(R.id.dr_editText);
k1_e=(EditText)findViewById(R.id.k1_editText);
k2_e=(EditText)findViewById(R.id.k2_editText);
al_e=(EditText)findViewById(R.id.al_editText);
alconst_e=(EditText)findViewById(R.id.al_const_editText);
dr_e.setText(null);
k1_e.setText(null);
k2_e.setText(null);
al_e.setText(null);
alconst_e.setText(null);
dr_e.requestFocus();
}
}
xml文件到此处
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/black"
android:orientation="vertical"
android:id="@+id/form_layout" xmlns:android="http://schemas.android.com/apk/res/android">
<Spinner
android:id="@+id/formulae"
android:layout_width="400dp"
android:layout_height="125dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:background="@color/LightSkyBlue"
android:dropDownWidth="wrap_content"
android:entries="@array/formulas"
android:gravity="center"
android:paddingLeft="0dp"
android:textAlignment="center" />
<EditText
android:id="@+id/k1_editText"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/k1"
android:layout_alignLeft="@+id/al_const_editText"
android:layout_alignTop="@+id/k1"
android:background="@color/black"
android:ems="10"
android:enabled="true"
android:focusable="true"
android:inputType="numberDecimal"
android:textColor="@color/White"
android:textSize="30sp"
android:onClick="@drawable/textfield_activated_holo_light"
android:visibility="visible" >
</EditText>
<EditText
android:id="@+id/k2_editText"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/k2"
android:layout_alignLeft="@+id/k1_editText"
android:layout_alignTop="@+id/k2"
android:background="@color/black"
android:ems="10"
android:enabled="true"
android:inputType="numberDecimal"
android:onClick="@drawable/textfield_activated_holo_light"
android:textSize="30sp"
android:visibility="visible" >
</EditText>
<EditText
android:id="@+id/al_editText"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/al"
android:layout_alignLeft="@+id/al_const_editText"
android:layout_alignTop="@+id/al"
android:ems="10"
android:enabled="true"
android:inputType="numberDecimal"
android:onClick="@drawable/textfield_activated_holo_light"
android:textSize="30sp"
android:visibility="visible" />
<EditText
android:id="@+id/al_const_editText"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/al_const"
android:layout_alignTop="@+id/al_const"
android:layout_marginLeft="21dp"
android:layout_toRightOf="@+id/al_const"
android:ems="10"
android:enabled="true"
android:inputType="numberDecimal"
android:onClick="@drawable/textfield_activated_holo_light"
android:textSize="30sp"
android:visibility="visible" />
<Button
android:id="@+id/result"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginBottom="28dp"
android:background="@color/LightSkyBlue"
android:gravity="center"
android:height="100dp"
android:maxWidth="80dp"
android:minHeight="60dp"
android:paddingLeft="150dp"
android:paddingRight="200dp"
android:text="@string/Result"
android:textSize="60sp" />
<TextView
android:id="@+id/al_const"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/result"
android:layout_alignParentLeft="true"
android:layout_marginBottom="89dp"
android:layout_marginLeft="50dp"
android:text="@string/Rx"
android:textColor="@color/White"
android:textSize="60sp" />
<TextView
android:id="@+id/k2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/al"
android:layout_alignLeft="@+id/al_const"
android:layout_marginBottom="126dp"
android:layout_marginLeft="23dp"
android:text="@string/K2"
android:textColor="@color/White"
android:textSize="60sp" />
<TextView
android:id="@+id/al"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/al_const"
android:layout_alignRight="@+id/k2"
android:layout_marginBottom="125dp"
android:text="@string/AL"
android:textColor="@color/White"
android:textSize="60sp" />
<TextView
android:id="@+id/k1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/k2"
android:layout_alignLeft="@+id/al"
android:layout_marginBottom="97dp"
android:text="@string/K1"
android:textColor="@color/white"
android:textSize="60sp" />
<EditText
android:id="@+id/dr_editText"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/k1_editText"
android:layout_below="@+id/formulae"
android:layout_marginTop="58dp"
android:ems="10"
android:inputType="numberSigned|numberDecimal"
android:paddingTop="35dp"
android:textColor="@color/White"
android:textSize="30sp" />
<TextView
android:id="@id/dr"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/dr_editText"
android:layout_alignLeft="@+id/k2"
android:layout_alignTop="@+id/dr_editText"
android:layout_toLeftOf="@+id/dr_editText"
android:ems="10"
android:paddingLeft="100dp"
android:paddingTop="10dp"
android:text="@string/dr"
android:textColor="@color/White"
android:textSize="50sp" />
</RelativeLayout>
我在drawable文件夹中有textfield_activated_holo_light.9.png。但为什么我会收到此错误？
答案 0 :(得分：1)
从xml中删除它（在EditText中）
android:onClick="@drawable/textfield_activated_holo_light"
就突出显示editext而言，您可以这样做：
1）定义一个xml文件，说mybackground.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:drawable="@drawable/textfield_activated_holo_light" /> <!-- pressed -->
<item android:state_focused="true"
android:drawable="@drawable/textfield_activated_holo_light" /> <!-- focused -->
<item android:drawable="@drawable/default" /> <!-- default -->
</selector>
2）将此xml复制到drawable文件夹
3）将此xml设置为xml文件中editext的背景：
<EditText
android:id="@+id/k1_editText"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/k1"
android:layout_alignLeft="@+id/al_const_editText"
android:layout_alignTop="@+id/k1"
android:background="@drawable/mybackground"
android:ems="10"
android:enabled="true"
android:focusable="true"
android:inputType="numberDecimal"
android:textColor="@color/White"
android:textSize="30sp"
android:visibility="visible" >
答案 1 :(得分：0)
覆盖OnClickListener中的onStart()，然后在onClick(View v)中，设置v.setBackgroundResource(getResources().getDrawable(R.drawable.textfield_activated_holo_light)
答案 2 :(得分：0)
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int flag = 0;
String op="INVALID INPUT";
dr_e=(EditText)findViewById(R.id.dr_editText);
k1_e=(EditText)findViewById(R.id.k1_editText);
k2_e=(EditText)findViewById(R.id.k2_editText);
al_e=(EditText)findViewById(R.id.al_editText);
alconst_e=(EditText)findViewById(R.id.al_const_editText);
k1_e.isClickable();
k2_e.isClickable();
al_e.isClickable();
alconst_e.isClickable();
k1_e.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View arg0)
{
//put your action here
}
});
k2_e.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View arg0)
{
//put your action here
}
});
//and other EditText also
if(dr_e.getText().toString().length()==0|k1_e.getText().toString().length()==0|k2_e.getText().toString().length()==0|al_e.getText().toString().length()==0|alconst_e.getText().toString().length()==0){
flag=1;
}else{
dr=Float.parseFloat(dr_e.getText().toString());
k1=Float.parseFloat(k1_e.getText().toString());
k2=Float.parseFloat(k2_e.getText().toString());
al=Float.parseFloat(al_e.getText().toString());
al_const=Float.parseFloat(alconst_e.getText().toString());
}
Avg_k=(k1+k2)/2;
if(spinSelected==0){
IOLPower=Srkt();
Intent iSrkt=new Intent(Selection.this,Srkt.class);
if(flag!=1){
iSrkt.putExtra("RESULT", IOLPower);
}else{
iSrkt.putExtra("FLAG", flag);
iSrkt.putExtra("RESULT", op);
}
startActivity(iSrkt);
}else if(spinSelected==1){
IOLPower=Binkhorst();
Intent iBinkhorst=new Intent(Selection.this,Binkhorst.class);
if(flag!=1){
iBinkhorst.putExtra("RESULT", IOLPower);
}else{
iBinkhorst.putExtra("FLAG", flag);
iBinkhorst.putExtra("RESULT", op);
}
startActivity(iBinkhorst);
}else if(spinSelected==2){
IOLPower=Srk2();
Intent iSrk2=new Intent(Selection.this,Srk2.class);
if(flag!=1){
iSrk2.putExtra("RESULT", IOLPower);
}else{
iSrk2.putExtra("FLAG", flag);
iSrk2.putExtra("RESULT", op);
}
startActivity(iSrk2);
}else{
IOLPower=Holladay();
Intent iHolladay=new Intent(Selection.this,Holladay.class);
if(flag!=1){
iHolladay.putExtra("RESULT", IOLPower);
}else{
iHolladay.putExtra("FLAG", flag);
iHolladay.putExtra("RESULT", op);
}
startActivity(iHolladay);
}
}
});
}