我正在设计一个Android应用程序。我的应用程序在上面的21 API上工作正常，但是当我开始在API 18上测试它时不幸停止了。在登录活动的开始应用程序正在停止。当我在Edittext应用程序中输入时，不幸停止。 以下是我的代码。
package com.example.kiran.kioskapp.activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.kiran.kioskapp.MyApplication;
import com.example.kiran.kioskapp.R;
import com.example.kiran.kioskapp.helper.Helper;
import com.example.kiran.kioskapp.helper.SessionManager;
import com.example.kiran.kioskapp.utils.APIUtils;
import com.example.kiran.kioskapp.data.remote.Webservice;
import com.example.kiran.kioskapp.service.ConnectivityReceiver;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class LoginActivity extends AppCompatActivity implements ConnectivityReceiver.ConnectivityReceiverListener {
Button ibtnLogin;
EditText iedtClientId, iedtDeviceCode;
String strDeviceCode;
long clientId;
Helper helper;
Webservice webservice;
SessionManager sessionManager;
Toolbar toolbar;
ImageView imageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
initToolbar();
checkConnection();
sessionManager = new SessionManager(LoginActivity.this);
helper = new Helper(LoginActivity.this);
webservice = APIUtils.getWebsevice(Webservice.class);
//if already logged in then edirect to HomeActivity
Log.d("TAG", "session " + sessionManager.isLoggedIn());
iedtClientId = (EditText) findViewById(R.id.edt_clientid);
iedtDeviceCode = (EditText) findViewById(R.id.edt_device_code);
ibtnLogin = (Button) findViewById(R.id.btn_login);
ibtnLogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (checkValidation()) {
clientId = Long.parseLong(iedtClientId.getText().toString().trim());
strDeviceCode = iedtDeviceCode.getText().toString().trim();
strDeviceCode = strDeviceCode.toUpperCase();
webservice.isAuthenticate(clientId, strDeviceCode).enqueue(new Callback<Boolean>() {
@Override
public void onResponse(Call<Boolean> call, Response<Boolean> response) {
if (response.code() == 200) {
ProgressDialog dialog = ProgressDialog.show(LoginActivity.this, getString(R.string.progess_title), getString(R.string.progess_message), false, false);
dialog.show();
sessionManager.createLoginSession(clientId, strDeviceCode);
Intent intent = new Intent(LoginActivity.this, HomeActivity.class);
startActivity(intent);
finish();
} else
Helper.showCustomToast(LoginActivity.this, getString(R.string.wrong_credentials));
}
@Override
public void onFailure(Call<Boolean> call, Throwable t) {
Helper.showCustomToast(LoginActivity.this, getString(R.string.network_error));
}
});
}//if checkvalidation()
}
});
}
public boolean checkValidation() {
boolean valid = true;
if (iedtClientId.getText().toString().trim().isEmpty()) {
iedtClientId.setError(getString(R.string.client_error));
valid = false;
} else {
iedtClientId.setError(null);
}
if (iedtDeviceCode.getText().toString().trim().isEmpty()) {
iedtDeviceCode.setError(getString(R.string.device_error));
valid = false;
} else {
iedtDeviceCode.setError(null);
}
return valid;
}
private void initToolbar() {
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setTitle("");//reset default title
imageView = (ImageView) toolbar.findViewById(R.id.img_refresh);
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
});
}
private void checkConnection() {
boolean isConnected = ConnectivityReceiver.isConnected();
showSnackBar(isConnected);
if (isConnected == true) {
String recName = ConnectivityReceiver.getConnectedWifiInfo();
int level = ConnectivityReceiver.getLevel();
Log.d("TAG", recName + " " + level);
}
}
@Override
protected void onResume() {
super.onResume();
MyApplication.getInstance().setConnectivityListener(this);
}
void showSnackBar(boolean value) {
String message;
if (value == true)
message = "Good! Connected to Internet";
else
message = "Sorry! Not connected to internet";
View mView = findViewById(android.R.id.content);
Snackbar.make(mView, message, Snackbar.LENGTH_LONG)
.show();
}
@Override
public void onNetworkConnectionChanged(boolean isConnected) {
showSnackBar(isConnected);
}
}
它显示了各种例外。
Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering
10-31 00:18:57.991 2105-2105/com.example.kiran.kioskapp E/InputEventReceiver: Exception dispatching input event.
10-31 00:18:57.991 2105-2105/com.example.kiran.kioskapp E/MessageQueue-JNI: Exception in MessageQueue callback: handleReceiveCallback
10-31 00:18:57.991 2105-2105/com.example.kiran.kioskapp E/MessageQueue-JNI: java.lang.IndexOutOfBoundsException
at android.graphics.Paint.getTextRunAdvances(Paint.java:1777)
at android.text.TextLine.handleText(TextLine.java:747)
at android.text.TextLine.handleRun(TextLine.java:898)
at android.text.TextLine.measureRun(TextLine.java:414)
at android.text.TextLine.measure(TextLine.java:293)
at android.text.Layout.getHorizontal(Layout.java:852)
at android.text.Layout.getHorizontal(Layout.java:830)
at android.text.Layout.getPrimaryHorizontal(Layout.java:805)
at android.text.Layout.getPrimaryHorizontal(Layout.java:795)
at android.text.Layout.getOffsetForHorizontal(Layout.java:1116)
at android.widget.TextView.getOffsetAtCoordinate(TextView.java:8520)
at android.widget.TextView.getOffsetForPosition(TextView.java:8496)
at android.widget.Editor$SelectionModifierCursorController.onTouchEvent(Editor.java:3597)
at android.widget.Editor.onTouchEvent(Editor.java:1017)
at android.widget.TextView.onTouchEvent(TextView.java:7601)
at android.view.View.dispatchTouchEvent(View.java:7384)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1966)
at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1418)
at android.app.Activity.dispatchTouchEvent(Activity.java:2424)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:71)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:71)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1914)
at android.view.View.dispatchPointerEvent(View.java:7564)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:3883)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3778)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3429)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3398)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3483)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3406)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3540)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3429)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3398)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3406)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5419)
at android.view.ViewRootI
10-31 00:18:58.001 2105-2105/com.example.kiran.kioskapp E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.IndexOutOfBoundsException
at android.graphics.Paint.getTextRunAdvances(Paint.java:1777)
at android.text.TextLine.handleText(TextLine.java:747)
at android.text.TextLine.handleRun(TextLine.java:898)
at android.text.TextLine.measureRun(TextLine.java:414)
at android.text.TextLine.measure(TextLine.java:293)
at android.text.Layout.getHorizontal(Layout.java:852)
at android.text.Layout.getHorizontal(Layout.java:830)
at android.text.Layout.getPrimaryHorizontal(Layout.java:805)
at android.text.Layout.getPrimaryHorizontal(Layout.java:795)
at android.text.Layout.getOffsetForHorizontal(Layout.java:1116)
at android.widget.TextView.getOffsetAtCoordinate(TextView.java:8520)
at android.widget.TextView.getOffsetForPosition(TextView.java:8496)
at android.widget.Editor$SelectionModifierCursorController.onTouchEvent(Editor.java:3597)
at android.widget.Editor.onTouchEvent(Editor.java:1017)
at android.widget.TextView.onTouchEvent(TextView.java:7601)
at android.view.View.dispatchTouchEvent(View.java:7384)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2211)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1912)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1966)
at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1418)
at android.app.Activity.dispatchTouchEvent(Activity.java:2424)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:71)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:71)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1914)
at android.view.View.dispatchPointerEvent(View.java:7564)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:3883)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3778)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3429)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3398)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3483)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3406)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3540)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3429)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3398)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3406)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3379)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5419)
at an
[ 10-31 00:18:58.011 1442: 1567 D/ ]
HostConnection::get() New Host Connection established 0xb7d793f0, tid 1567
...
错误正是我没有得到的地方。请帮忙。
答案 0 :(得分：0)
试试这个，检查Android Api版本是否高于19然后应用涟漪效应，否则没有涟漪效应
private void setBackgrounds(){
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
{
forgot.setBackgroundDrawable(getResources().getDrawable(R.drawable.tv_ripple));
}
tv_ripple.xml
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:color="#55000000"
tools:targetApi="lollipop">
<item android:id="@android:id/mask">
<shape android:shape="rectangle">
<solid android:color="#88000000" />
<corners android:radius="5dp"/>
</shape>
</item>
</ripple>